HomeMy WebLinkAbout4827 Amending Article I - X in the City's Land Development RegulationsOrdinance No. 2025-4827
An ordinance of the City Commission of the City of Sanford, Florida
substantially and comprehensively revising and amending the
provisions of Schedules "N" and "O" of the City of Sanford Code/Land
Development Regulations (LDRs), relating to an array of subdivision
and drainage, easement, and site preparation requirements; providing
for legislative findings and intent; providing for a savings provision;
providing for conflicts; providing for severability; providing for
exhibits, codification and the correction of scrivener's errors; and
providing for an effective date.
Whereas, the City of Sanford's Planning and Development Services
Department staff has conducted a thorough review and analysis of the City's Land
Development Regulations (LDRs) in order to ensure that sound and generally accepted
land use planning and development practices and principles are applied throughout the
City's LDRs and to ensure that the City's LDRs are consistent with and appropriately
implement the City's Comprehensive Plan; and
Whereas, the City's professional City planning staff and the City's Planning and
Zoning Commission as well as the City Commission have determined that the proposed
amendments to the City's LDRs are consistent with the Comprehensive Plan of the City of
Sanford and the controlling provisions of State law; and
Whereas, the City Commission of the City of Sanford, Florida has enacted this
Ordinance in accordance with the requirements and procedures mandated by State law
and all prior land use actions of the City are hereby ratified and affirmed.
Now, therefore, be in enacted by the People of the City of Sanford, Florida:
Section 1. Legislative Findings and Intent.
(a). The City Commission of the City of Sanford hereby adopts and incorporates
into this Ordinance the City staff report and City Commission agenda memorandum
relating to the application relating to this Ordinance as well as the recitals (whereas
clauses) to this Ordinance.
(b). The City of Sanford has complied with all requirements and procedures of
Florida law in processing and advertising this Ordinance.
Section 2. Substantial And Comprehensive Revision And Amendment Of
Schedules "N" And "O", City of Sanford Code/Land Development Regulations,
Subdivision, Drainage, Easement, and Site Preparation Requirements.
(a). Schedule "N" of the City of Sanford Code/Land Development Regulations
are substantially revised and amended to read as set forth in the Exhibit to this Ordinance
which is noted to be applicable to Schedule "N" and which, by this reference thereto, is
incorporated herein as if fully set forth herein verbatim.
(b). Schedule " O" of the City of Sanford Code/Land Development Regulations
are substantially revised and amended to read as set forth in the Exhibit to this Ordinance
which is noted to be applicable to Schedule "O" and which, by this reference thereto, is
incorporated herein as if fully set forth herein verbatim.
Section 3. Conflicts.
All ordinances or part of ordinances in conflict with this Ordinance are hereby
repealed.
Section 4. Severability.
If any section, sentence, phrase, word, or portion of this Ordinance is determined
to be invalid, unlawful or unconstitutional, said determination shall not be held to
invalidate or impair the validity, force or effect of any other section, sentence, phrase,
word, or portion of this Ordinance not otherwise determined to be invalid, unlawful, or
unconstitutional.
a
Section 5. Savings; Effect Of Ordinance.
The prior actions of the City of Sanford in terms of the matters relating to any and
all actions and activities of the City pertaining to the City's Land Development
Regulations, or of an associated nature, are hereby ratified and affirmed.
Section 6. Codification; Scrivener's Errors.
(a). The exhibits referenced in Section 2 of this Ordinance shall be codified and
all other sections of this Ordinance shall not be codified.
(b). Typographical errors and other matters of a similar nature that do not affect
the intent of this Ordinance, as determined by the City Clerk and City Attorney, may be
corrected with the endorsement of the City Manager, or designee, without the need for a
public hearing.
Section 7. Effective Date.
This Ordinance shall become effective immediately upon enactment.
Passed and adopted this 14th day of July, 2025.
Attest:
Traci Houchiri, MMC, FCRM
City Clerk
City Commission
Sanford, Florida
FU-�i '<-'
o -► Art F ff
Approved as to form and legal suffici cy:
i
Lin say NIGreene
City Attc4 ney
the City of
4. CITY OF
- SjkNFORD
FLORIDA
Business Impact Estimate
This form should be included in agenda packet for the item under which the proposed ordinance
is to be considered, and must be posted on the City's website by the time notice of the proposed
ordinance is published.
Proposed ordinance's title/reference:
An ordinance of the City Commission of the City of Sanford, Florida substantially and
comprehensively revising, amending and reassigning the provisions of Schedule N —
Subdivision Requirements, Schedule O — Drainage, Easements and Site
Preparation/Excavation Requirements of the City of Sanford Code/Land Development
Regulations (LDRs); providing for a savings provision; providing for conflicts; providing
for severability; providing for codification and the correction of scrivener's errors; and
providing for an effective date.
The City is of the view that the following exception(s) to the Business Impact Estimate
requirement apply that are checked off in a box below apply to the above -referenced
proposed ordinance, although the City is implementing the procedure required by
statutory law to ensure that no inadvertent procedural issue could impact the enactment
of the proposed ordinance.
❑ The proposed ordinance is required for compliance with Federal or State law or
regulation;
❑ The proposed ordinance relates to the issuance or refinancing of debt;
❑ The proposed ordinance relates to the adoption of budgets or budget
amendments, including revenue sources necessary to fund the budget;
❑ The proposed ordinance is required to implement a contract or an agreement,
including, but not limited to, any Federal, State, local, or private grant, or other
financial assistance accepted by the
❑ The proposed ordinance is an emergency ordinance;
❑ The ordinance relates to procurement; or
® The proposed ordinance is enacted to implement the following:
a. Part II of Chapter 163, Florida Statutes, relating to growth policy, county and
municipal planning, and land development regulation, including zoning,
development orders, development agreements and development permits;
b. Sections 190.005 and 190.046, Florida Statutes, regarding community
development districts;
c. Section 553.73, Florida Statutes, relating to the Florida Building Code; or
d. Section 633.202, Florida Statutes, relating to the Florida Fire Prevention Code.
In accordance with the provisions of controlling law, even notwithstanding the fact that,
an exemption noted above may apply, the City hereby publishes the following information:
1. Summary of the proposed ordinance (must include statement of the public purpose,
such as serving the public health, safety, morals, and welfare):
This ordinance updates the land development regulations in the city. The purpose is to
ensure the regulations are current and effective in promoting public health, safety, and
welfare. The update to the Schedules was designed to accomplish three main objectives:
1. Improve transparency by updating language to be consistent in design with
previously updated Land Development Codes;
2. Remove redundant, impractical, and outdated regulations; and
3. Include new trends, tools and regulations that provide clear and easy regulations
for any person to both find the necessary information and understand the
information defined for the intended objective.
2. Estimate of direct economic impact of the proposed ordinance on private, for -profit
businesses in the City:
The proposed ordinance does introduce slight changes that may positively impact
development costs but will have minimal to no direct economic impact on private, for -
profit businesses.
3. Estimate of direct compliance costs that businesses may reasonably incur:
Not applicable: The ordinance does not introduce new compliance requirements or
changes that affect business operations.
No new charges are introduced in the adoption of this ordinance for compliance.
4. Any new charge or fee imposed by the proposed ordinance:
Not applicable: No new charges are directly introduced in the adoption of this ordinance.
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5. Estimate of the City's regulatory costs, including estimated revenues from any new
charges or fees to cover such costs:
Not applicable: There are no significant changes in regulatory costs or new fees imposed.
6. Good faith estimate of the number of businesses likely to be impacted by the proposed
ordinance:
Not applicable: The proposed changes do not significantly impact a specific number of
businesses or if any impact is incurred, the impact is minimal.
7. Additional information (if any, but may wish to include the methodology used to derive
information for #1 and #2, above. For example: City staff solicited comments from
businesses in the City as to the potential impact of the proposed ordinance by contacting
the chamber of commerce, social media posting, direct mail or direct email, posting on
City website, public workshop, etc. You may also wish to include efforts made to reduce
the potential fiscal impact on businesses based on feedback from businesses. You may
also wish to state here that the proposed ordinance is a generally applicable ordinance
that applies to all persons similarly situated (individuals as well as businesses) and,
therefore, the proposed ordinance does not impose costs only upon businesses.):
The proposed ordinance updates existing land development regulations to enhance
clarity and opportunities. The changes are based on general feedback received from
applicants over time, which highlighted areas for improvement in terms of transparency
and regulatory adherence. While there was no specific community outreach conducted
for this update, the changes reflect the ongoing efforts to address concerns and
suggestions from individuals and businesses interacting with the land development
process.
Furthermore, the proposed ordinance is designed to be generally applicable, impacting
all individuals and businesses similarly situated. This approach ensures that the
ordinance does not impose costs solely upon businesses but applies uniformly to all
parties subject to the regulations.
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SCHEDULE N
SUBDIVISION REQUIREMENTS
SECTION 1.0 PURPOSE, LAWFULNESS AND BEST PRACTICES...................................................... I
A.
Purpose and Intent.................................................................................................................................... I
B.
Lawfulness.................................................................................................................................................1
C.
Best Practices.............................................................................................................................................1
SECTION 2.0 STREETS, LOTS AND TRACTS DESIGN.......................................................................... I
A.
Applicability, General Provisions, Abbreviation Uses.......................................................................... 1
B.
General Street Design and Arrangement............................................................................................... 2
1. Comprehensive Plan Consistency......................................................................................................... 2
2. Natural Contours................................................................................................................................... 2
3. Connectivity..........................................................................................................................................2
4. Street Jogs............................................................................................................................................. 3
5. Street Intersections................................................................................................................................ 3
6. Half Streets........................................................................................................................................... 4
7. Street Names......................................................................................................................................... 4
8. Additional Right-of-Way...................................................................................................................... 4
9. Street Identification Signs..................................................................................................................... 4
10. Traffic Speed Enforcement Signs......................................................................................................... 5
11. Reverse Curves..................................................................................................................................... 5
12. Horizontal and Vertical Curves............................................................................................................ 5
13. Intersection Return Radii...................................................................................................................... 5
14. Other Street Improvements................................................................................................................... 5
15. Clear Zone............................................................................................................................................. 6
16. Street Trees: .......................................................................................................................................... 6
17. Design Speed: ....................................................................................................................................... 6
C.
Local Streets.............................................................................................................................................. 6
1. Local Street Types................................................................................................................................ 6
2. Minimum Right -of -Way and Pavement............................................................................................... 6
3. Urban and Rural Streets........................................................................................................................ 6
4. Permanent Dead -End Streets................................................................................................................ 6
5. Intersection Improvements................................................................................................................... 7
6. Traffic Calming Program...................................................................................................................... 7
D.
General Lot and Block Design Requirements........................................................................................ 8
1. Area and Dimensional Requirements................................................................................................... 8
2. One and Two -Family Dwelling Lots.................................................................................................... 8
3. Multiple -Family Dwelling and Nonresidential Use Lots..................................................................... 8
4. Townhome Use Lots............................................................................................................................. 8
5. Lot Lines............................................................................................................................................... 8
6. Corner Lots........................................................................................................................................... 8
7. Double Frontage Lots........................................................................................................................... 8
8. Residential Adjacent to Railroads......................................................................................................... 9
9. Block Length......................................................................................................................................... 9
10. Water Access........................................................................................................................................ 9
11. Flag Lot Standards................................................................................................................................ 9
12. Lot Width -to -Depth Ratio..................................................................................................................... 9
13. Fire Hydrant Placement........................................................................................................................ 9
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14. Fill......................................................................................................................................................... 9
E. Private Streets and Gated Communities.............................................................................................. 10
1. Private Streets and Roads................................................................................................................... 10
2. Drainage and Road Construction Plans.............................................................................................. 10
3. Construction Permit............................................................................................................................ 10
4. Finalized Construction and Maintenance Agreement......................................................................... 10
5. Minimum Standard for Incorporation................................................................................................. 11
6. Required Fee....................................................................................................................................... 11
7. Notification of Access by Private Road.............................................................................................. 11
8. Service at Public Access Point............................................................................................................ 11
9. Entryway Gate Emergency Access Audio Override........................................................................... 11
10. Automatic Gates Power Back Up....................................................................................................... 11
11. Entryway Gate Knox Box................................................................................................................... 11
SECTION3.0 SIDEWALKS......................................................................................................................... 11
A. General Sidewalk Requirements........................................................................................................... 12
1. Required Provision............................................................................................................................. 12
2. Location..............................................................................................................................................12
3. Width..................................................................................................................................................12
4. Pedestrian Easements.......................................................................................................................... 12
B. Sidewalk Construction Requirements.................................................................................................. 12
1. Sidewalk..............................................................................................................................................12
2. Sidewalk Subgrade............................................................................................................................. 13
3. Expansion Joints................................................................................................................................. 13
4. Finishing.............................................................................................................................................13
5. Curb Ramps and Detectable Warning Surfaces.................................................................................. 13
SECTION 4.0 EASEMENTS AND OTHER UTILITIES..........................................................................14
A. Easements................................................................................................................................................14
B. Other Utilities..........................................................................................................................................14
1. Electric Supply System....................................................................................................................... 14
2. Streetlights..........................................................................................................................................14
3. Telephone & Cablevision Supply System.......................................................................................... 15
SECTION 5.0 STREET CONSTRUCTION................................................................................................ 15
A. Street Specifications................................................................................................................................ 15
1. Grades.................................................................................................................................................15
2. General Clearing and Excavation Requirements................................................................................ 15
3. Fill....................................................................................................................................................... 15
4. Subbase...............................................................................................................................................16
5. Base..................................................................................................................................................... 16
6. Pavement Types and Thickness.......................................................................................................... 17
7. Open Road Cuts.................................................................................................................................. 17
8. Pavement Specification Standards...................................................................................................... 17
9. Riding Surface.................................................................................................................................... 17
10. Intersections and Required Conduit.................................................................................................... 18
11. Curb and Gutter Required................................................................................................................... 18
12. Headwalls............................................................................................................................................ 18
13. Specifications for Miscellaneous Concrete Improvements................................................................. 18
B. Auxiliary Lanes (Right and Left Turn Lanes)..................................................................................... 19
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1. Requirements......................................................................................................................................19
2. Auxiliary Lane.................................................................................................................................... 19
3. Exceptions...........................................................................................................................................20
SECTION 6.0 ACCESS STANDARDS AND SHARED ACCESS REQUIREMENTS .......................... 20
A. Access Standards..................................................................................................................................... 20
1. Purpose................................................................................................................................................20
2. General Access Standards................................................................................................................... 20
3. Access Limitations.............................................................................................................................. 21
4. Number and Spacing of Driveways.................................................................................................... 21
5. Driveway Design................................................................................................................................ 21
B. Common Vehicular Access Points......................................................................................................... 22
1. Applicability.......................................................................................................................................22
2. Design of Common Vehicular Access Points..................................................................................... 23
3. Submittal of Draft Common Vehicular Access Point Agreement...................................................... 23
4. Recording and Evidence of Common Vehicular Access Point Agreement ........................................ 23
5. Identification of Common Vehicular Access Point Agreements on the Zoning District Map........... 23
6. Temporary Vehicular Access Points................................................................................................... 23
SECTION 7.0 SOLID WASTE CONTAINER REQUIREMENTS.......................................................... 23
A. Front End Loaded Refuse Container Location Requirements........................................................... 23
1. Service Access.................................................................................................................................... 24
2. Siting Obstructions............................................................................................................................. 24
3. Container Pads.................................................................................................................................... 24
4. F.E.L. Refuse Container Screening Requirements............................................................................. 24
5. Drains..................................................................................................................................................24
B. Roll -off Compactor Container Location Requirements...................................................................... 24
1. Container Pads.................................................................................................................................... 24
2. Service Access.................................................................................................................................... 24
3. Electrical Requirements...................................................................................................................... 25
SECTION 8.0 MATERIALS AND TESTING............................................................................................. 25
A. General Testing of Materials................................................................................................................. 25
1. Subgrade and shoulders...................................................................................................................... 25
2. Base.....................................................................................................................................................25
3. Surface................................................................................................................................................25
4. Soil cement......................................................................................................................................... 25
B. Concrete...................................................................................................................................................25
C. Asphalt.....................................................................................................................................................25
D. Sidewalks.................................................................................................................................................26
SECTION 9.0 CONSTRUCTION AND INSPECTION BY THE CITY .................................................. 26
SECTION 10.0 FIGUREALLUSTRATIONS 1-15........................................................................................ 27
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SCHEDULE N
SUBDIVISION REQUIREMENTS
3 SECTION 1.0 PURPOSE. LAWFULNESS AND BEST PRACTICES
4 A. Purpose and Intent.
5 To establish herein all essential and necessary regulations, standards and information for the effective and
6 orderly development of property specifically in regard to the subdivision of land, layout of streets, and overall
7 design of lots, tracks, parcels, and easements. This schedule provides detailed regulations and technical
8 specifications that are to be applied to any new or existingdevelopment evelopment that will have modify any boundary
9 or line that will impact the size or orientation of any platted or unplatted property. This schedule is also for
0 the regulation of any easement necessary for public access, right-of-way or any public facility other than
1 water, sewer, or drainage.
2 B. Lawfulness.
3 Any deviation from the provisions of this Schedule, unless specifically stated herein or allowed by other
4 provisions of these LDRs or under the authority of the Administrative Official is prohibited and unlawful.
5 C. Best Practices.
6 All reviews and determinations of the provisions within this Schedule by the Administrative Official shall be
7 to implement the Purpose and Intent of this Schedule together with sound and generally accepted land use and
8 growth management planning_ practices and principles that aim to balance the social, physical, economic and
9 environmental needs of the City.
0 SECTION 2.0 STREETS, LOTS AND TRACTS DESIGN
1 r_' -10—N. r 1- ST-PrE T-S A TSID TD A C4:9 DES!
2 The subdivision of land must be designed to facilitate multi -model access. This is accomplished by requiring
3 street layouts and intersections to meet standardized regulations. Street layout is also impacted by block and parcel
4 design. Therefore, these sections provide the technical and regulatory design standards for streets and parcels. All
5 property shall be designed in accordance with the following sections.
6 SECTION 1.1 APPLICABILITY; 111rNER A T PROVISIONS; ABBREVIATIONS USES
7 A. Applicability, General Provisions, Abbreviation Uses.
8 1. All subdivisions, streets, lots, tracts and related improvements shall be developed and improved in
9 accordance with the minimum standards and requirements set forth in this Schedule and in accordance
0 with the Manual of Uniform Minimum Standards For Design, Construction and Maintenance For Streets
1 and Highways (Commonly known as the "Florida Greenbook"), whichever is more restrictive. Many
2 provisions of the Florida Greenbook are phrased as suggestions ("should") instead of requirements
3 ("shall"). The Administrative Official may require a higher standard and interpret the suggestions of the
4 Florida Greenbook as mandatory requirements, when the application of such as a development
5 requirement is based upon an analysis of the unique aspects of a development being of such a nature that
6 such requirement is necessary to protect the safety of the traveling public and is consistent with the
7 application of sound and generally accepted land use planning practices and principles all of which shall
8 be set forth in a development order issued by the Administrative Official.
9 2. When a publication containing standards is referred to herein, the reference is to the latest edition of that
0 publication.
1 3. Nonconforming properties or access features shall be brought into compliance with this Schedule to the
2 greatest extent practical when the following conditions or circumstances occur:
3 A new driveway permit is requested;
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4 • An increase in land use intensity or density is requested;
5 • A significant change in trip generation is requested; or
6 • As changes in road design allow.
7 4. Whenever a determination under this Schedule requires, under Florida law, a determination to be made
8 by the City which would require a determination by a licensed professional engineer, such determination
9 shall be made by the Administrative Official upon consulting with City Engineer or an engineering
0 consultant of the City. The City Engineer or engineering consultant, as the case may be, may rely upon
1 the sealed plans or opinion of a Florida licensed engineer, such determinations shall be made by means of
2 the issuance of a development order issued by the Administrative Official.
3 5. Abbreviations. Wherever in this Schedule the following terms and abbreviations appear, their intent and
4 meaning shall, unless specifically stated otherwise, be interpreted as follows, and the City Clerk, as Code
5 codifier, may add and delete abbreviations without action by the City Commission upon recommendation
6 by the Administrative Official:
7
8 AASHTO American Association of State Highway and Transportation Officials
9 ADAAG Americans with Disabilities Act Accessibility Guidelines
0 ADT Average Daily Trips
1 ASTM American Society for Testing and Materials
2 FEL Front End Loaded
3 LBR Limerock Bearing Ratio
4 MPH Miles Per Hour
5 MUTCD Manual on Uniform Traffic Control Devices
6 SECT-1()N 1.2 Q_T~RTCD AT ST-Pc 1;T DESIGN AND ADD A14GEMENT
7 B. General Street Desian and Arrangement.
8 1. Comprehensive Plan Consistency.
9 Proposed streets must be consistent with the Traffic Circulation Plan Element of the Comprehensive Plan.
0 In addition, proposed streets shall conform to requirements set forth in Schedule C, Base Building Line
1 and Designated Right -of -Way Lines for specific streets.
2 2. Natural Contours.
3 Proposed streets shall be adjusted to the contour of the land so as to produce usable lots and streets of
4 reasonable gradient.
5 3. Connectivity.
6 a. The street system of a proposed subdivision shall be designed to coordinate with existing, proposed,
7 and planned streets outside of the subdivision while discouraging the use of local streets by cut -through
8 traffic. This may be accomplished by the use of modified grid systems, T-intersections, roadway jogs
9 or other appropriate traffic calming measures within the development.
0 b. Wherever a proposed development abuts unplatted land or a future development phase of the same
1 development, street stubs shall be provided as deemed necessary by the City to provide access to
2 abutting properties or to logically extend the street system into the surrounding area consistent with
3 sound engineering and planning practices and principles. All street stubs shall be provided with
4 temporary turn -around or cul-de-sacs unless specifically exempted by the City based upon a finding
5 and determination that the public interest does not require such construction which determination shall
6 be memorialized in a development order. Subsequently, the restoration and extension of the street shall
7 be the responsibility of any future developer of the abutting land.
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8 c. Sub -collector and local residential access streets shall connect with surrounding streets to permit the
9 convenient movement of traffic between residential neighborhoods or facilitate emergency access and
0 evacuation.
1 d. Whenever local and minor residential street connections between abutting subdivisions are required
2 by the City, the connecting facility shall be designed to discourage through traffic by nonresidents.
3 This may be accomplished by the following when approved by the City:
4 1) Curving the street, whenever practicable, to the extent necessary to avoid roadway segments where
5 higher operating speeds can be attained;
6 2) The planned design and posted speed for these vehicular linkages between residential subdivisions
7 to be equal or less than 25 miles per hour;
8 3) Encouraging the use of traffic circles, landscape islands, medians and other forms of traffic barriers
9 within the right-of-way as a means of discouraging through traffic by nonresidents.
0 4. Street Jogs.
1 Street jogs, or centerline offsets in the horizontal alignment of streets across intersections of less than 200'
2 are prohibited.
3 5. Street Intersections.
4 The design and location of intersections shall be consistent with the specifications of the Florida Green
5 Book.
6 Intersections shall be designed to intersect at right angles where possible and in no case shall intersect at
7 an angle less than 60 degrees.
8 The connection of more than two streets is prohibited except where no alternative reasonably exists as
9 determined by the City.
0 a. Spacing for Unsignalized Street Intersections.
1 1) The minimum spacing requirements of this section may be reduced upon finding by the City that,
2 given the particular conditions of the proposed development, the minimums cannot be met, and
3 such reduction will not compromise operational and safety standards.
4 2) An arterial road may intersect an arterial road only if aligned with and extending an existing arterial
5 or at a desirable distance of one mile from the intersection of existing arterials.
6 3) A collector may intersect an arterial but only if aligned with and extending an existing collector
7 which intersects the arterial or at a desirable distance of 1320' from the intersection of an existing
8 collector and the arterial.
9 4) Intersections between local streets and arterials shall be avoided. In cases where they do intersect,
0 the local street shall be aligned with and extending an existing local street which intersects the
1 arterial or at a desirable distance of 660' from any other street intersection.
2 5) A collector may intersect another collector only if aligned with and extending an existing collector
3 or at a desirable distance of 660' from the intersection of any other intersection.
4 6) A local street may intersect a collector if spaced at a minimum distance of 660' from any other
5 intersection or, in the case of a "T" type intersection, at a desirable distance of 660' from any other
6 street intersection.
7 7) A residential street functions only to service a local residential community and does not connect
8 any higher classified roadways.
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b. Spacing for Signalized Intersections.
It is desirable that intersections that are to be signalized have spacing specifications that are different
from that of non -signalized intersections in order that distances between signals be capable of
providing reasonable cycle lengths. The need for signals will be based upon one or more of the
warrants included in the MUTCD being satisfied. The following are minimum spacing of signalized
intersections for both urban and rural roadways:
Road Classification:
Signal Spacing:
Principal Arterial
1,600' to 2,000'
Minor Arterial
1,200' to 1,600'
Collector
660'
6. Half Streets.
Half streets are prohibited.
7. Street Names.
All streets within a subdivision hereafter established shall be named. All street names shall be reviewed
under current controlling guidelines. All street names shall be subject to approval by the Administrative
Official.
8. Additional Right -of -Way.
A proposed use, development or subdivision that abuts an existing street that does not conform to the
minimum right-of-way requirements set forth in this Schedule, shall provide for the dedication of
additional right-of-way along either one or both sides of said street so that the minimum right-of-way
required by these regulations can be established when a rational nexus exists and a rough proportionality
test supports the requirement. Additional right-of-way shall be dedicated to the applicable public entity.
9. Street Identification Signs.
Street identification signs which comply with the following specifications shall be installed by the
developer at all street intersections (See Figure N-11).
a. Sign Design.
All street identification signs shall be double sided. Signs shall be constructed of flat panel aluminum
(.080 thickness for 6" panels and .063 thickness for 9" panels) with 3/4" rounded corners. Sign panels
shall be a minimum of 6" in height for local streets (25 MPH or less) and 9" on all other streets. The
length of the sign shall be determined by the legend.
5 b. Sign Lettering.
6 Sign legends shall be in the font 'Highway Gothic' or the equivalent as specified in the Standard
7 Highway Signs Manual. Sign legends shall be in capital letters. Signs faces shall have a white high
8 intensity 3M material or equivalent reflective backing with black vinyl legend and border. All sign
9 legends shall incorporate block designation and the City logo. For City streets, the logo shall be placed
0 on the left side and the block designation shall be placed on the right side with equal spacing between
1 border and legend. Private streets shall not use the City logo but shall comply with all other design
2 standards of this subsection.
3 c. Posts and Hardware.
4 Posts shall be a standard 2 %" diameter by a minimum of 10' high. Posts shall be made of galvanized
5 steel and shall be secured in order to avoid vandalism of the sign.
6 d. Post Cap.
7 The post cap shall be a `Supra-Lok 922F' or equivalent aluminum cap for a 2 V round post or a
8 91UF-OL90 for a U-channel post.
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9 e. Cross Separator.
0 The cross separator shall be a `Supr-Lok9-90F' or equivalent.
1 f. Alternative Bracket.
2 The alternative bracket shall be a VS -Twist bracket or equivalent to accommodate 6" blades or 9"
3 blades for mounting above `stop' signs.
4 10. Traffic Speed Enforcement Signs.
5 Traffic speed enforcement signs shall be installed by the developer. The number and location of traffic
6 enforcement signs shall be determined by the Administrative Official.
7 11. Reverse Curves.
8 A tangent of at least 100' shall be introduced between reverse curves on all streets.
9 12. Horizontal and Vertical Curves.
0 Whenever a street changes direction or connecting street lines deflect from each other by more than ten
1 degrees horizontal alignment or 1% algebraic difference for vertical alignment, adequate sight distance
2 shall be provided with horizontal and vertical curves with minimum centerline radii as follows:
Street Type
Horizontal Curves
Vertical Curves
Local Streets*
100,
50'
Collectors
200'
100,
Arterials
500'
100,
Notes:
*If a local street has less than a 100' horizontal radius, the pavement shall be a
minimum of 30' in width.
3 13. Intersection Return Radii.
4 The minimum intersection radii of pavement edge, or back of curb, where used, at all typical intersections,
5 except for alleys, approximating a right angle shall be as follows: The minimum intersection return radius
6 of pavement edge, or back of curb, where used, at all typical intersections approximating a right angle
7 shall be as follows:
Category
Minimum Radius
35'
35'
( 50' N
2-Lane Access
Local to Collector
Local or Collector to Arterial
8 14.Other Street Improvements.
9 The developer shall be responsible for installing all transportation related improvements required by the
0 City including, but not limited to, auxiliary lanes, traffic control signs, stop signs, stop bars, speed limit
1 signs, street name signs and cross walks. All traffic control devices, including pavement markings, shall
2 conform to the MUTCD. Painted wooden regulatory signs are prohibited. High intensity 30" stop signs
3 shall be used.
4 When a modification to the width of an existing roadway is necessary, a minimum 1' of asphaltic concrete
5 overlay with leveling will be installed the full width and length of the entire affected section of the adjacent
6 roadway which will maintain drainage flow paths. The overlay shall extend a minimum of 12" beyond the
7 existing width of the pavement.
8 When more than 15 mailboxes are grouped or clustered together, a temporary off-street parking space
9 shall be provided adjacent to the mailboxes. A sign shall be provided designating the parking space as
0 temporary and for the use of persons accessing the mailboxes.
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1 15. Clear Zone.
2 The clear zone is the total roadside border area starting at the edge of the motor vehicle travel lane,
3 available for safe use by errant vehicles. It is usually the space between the travel lane and the sidewalk.
4 Clear zone shall be provided in accordance with the Florida Green Book. No obstructions, except
5 breakaway items, as defined by FDOT standards, shall be permitted in the clear zone.
6 16. Street Trees:
7 Street trees will be permitted only upon approval of the Administrative Official. Additional right of way
8 may be needed in order to locate the street trees out of the clear zone and away from public utilities.
9 17. Design Speed:
0 All new streets shall be designed according to the expected rate of travel by the 90th percentile user, plus
1 a minimum of 5 MPH. The stated design speed shall be shown on the construction plans for the streets.
2 The Administrative Official may require an increased design speed, when it is in the interest of public
3 health, safety, and welfare and is consistent with sound and generally accepted engineering practices and
4 principles. ILOCAL
STREETS
LT
5 SECTION 1.3 LOCAL ST EETS
6 C. Local Streets.
7 1. Local Street Types.
8 When a street's right-of-way is not established in Schedule C of these LDRs, such street shall be classified
9 as a local street. Major local streets that serve to collect and distribute traffic from shorter local streets
0 within a parcel of twenty or more acres in size shall be designated and identified as local collector streets.
1 2. Minimum Right -of -Way and Pavement.
2 Pavement width shall be exclusive of curb and gutter. Each travel lane shall have a minimum pavement
3 width of 12', except for alleys. The minimum right-of-way width and pavement width for urban local
4 streets shall be as follows:
Urban Local Streets
Street Type
Right -of -Way
Pavement
Alley (one-way)
20'
12'
Alley (two-way)
30'
20'
Local Street
50'
24'
Local Collector Street
60'
32'
5 3. Urban and Rural Streets.
6 Streets in the City shall utilize urban -type design features with a "closed" drainage system including
7 gutters, inlets and Miami or raised curbs. New rural -type street design features with an "open" drainage
8 system including open swales are prohibited. Typical details of urban street sections are reflected in Figure
9 N-1. Local streets shall not be superelevated but shall utilize a standard crown. Alleys may use an inverted
0 crown.
1 4. Permanent Dead -End Streets.
2 Dead-end streets designed as such permanently, shall be provided with a cul-de-sac at the closed end with
3 a turnaround having an outside roadway diameter of not less than 100', and a right-of-way diameter of
4 not less than 110'. Such dead-end streets shall not exceed 800' from cul-de-sac radius to centerline
5 intersection of the closest intersecting street. The Administrative Official may increase the length, based
6 upon sound and generally accepted engineering practices and principles.
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7 a. Cul-de-sac.
8 Cul-de-sacs shall be provided with a turnaround having a pavement radius of 50' excluding the
9 curbing. If an island is to be constructed in the cul-de-sac, the minimum turnaround radius shall be 50'
0 and shall be measured from the outside radius of the island. The island shall have FDOT mountable
1 curbs and a minimum diameter of 20'. The island shall be improved with landscaping that will not
2 interfere with the clear sight distance.
3 b. Temporary Dead -End Streets for Future Access.
4 Temporary dead-end streets shall be provided with a temporary turnaround area which shall meet the
5 requirements of the Administrative Official for design, maintenance, and removal. An easement for
6 roadway maintenance, in a form approved by the City Attorney, shall be dedicated around the
7 turnaround which corresponds to the right-of-way requirement for that permanent type of turnaround.
8 5. Intersection Improvements.
9 Street improvement at intersections shall include the use of a concrete valley gutter in conformity with
0 specifications illustrated on Figure N-3, unless the applicant can demonstrate that there will be no drainage
1 flow across the driveway from adjacent gutters.
2 6. Traffic Calming Program.
3 Traffic calming is the combination of mainly physical measures that reduce the negative effects of motor
4 vehicle use, alter driver behavior and improve conditions for nonmotorized street users.
5 a. Traffic Calming Criteria:
6 1) Roadway must have a documented issue with speeding (observed 85th percentile speed is greater
7 than 10 MPH over posted speed limit)
8 2) Minimum/Maximum Roadway Volume: 750 vehicles per day 15,000 vehicles per day (to be
9 determined through existing annual counts, if available, or a new count)
0 3) Maximum Speed: The posted speed on the roadway must not exceed 30 MPH.
1 4) Homeowner approval for installation (and removal): 65%
2 5) Consider other owners impacted by devices (side streets) on a case by case basis.
3 6) Functional spacing of devices (primarily for speed cushions or humps):
4 i. 300'-400' between devices.
5 ii. Not on curves/turns.
6 iii. Minimum of 100' from intersections or curves/turns.
7 iv. Spacing subject to adjustment for driveways.
8 7) Roadway must have driveways that directly access the road.
9 8) Roadway must be subject to through traffic - not in a "closed development".
0 9) Roadway must not be a principal arterial; minor arterial or major collector roadway must be a local
1 street or minor collector (evaluated on a case by case basis
2 10) Roadway character/location (rural vs. urban) — considered on a case by case basis.
3 b. Speed Reduction Measures.
4 The following measures may be approved by the City:
5 1) Speed humps and speed tables.
6 Speed humps and speed tables may be used where the purpose is to reduce speed and calm traffic
7 provided they comply with the following (see Figures N-4a and N-4b):
8 i. Speed humps shall be parabolic, curved or sinusoidal in profile, 3"- 4" high and 12' — 14' long.
9 They shall be used to reduce speeds to no more than 15-20 MPH.
0 ii. Speed tables shall be flat-topped speed humps, also 3"-4" high, but with a sloped approach
1 taper on each side of a flat top, generally 20'-24' wide. They shall be used to reduce speeds to
2 no more than 20-25 MPH.
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3 iii. Speed tables and humps shall be clearly marked with 8" white thermoplastic across the raised
4 area and motorists have 50' of warning before each speed hump or table by signage either
5 painted on the road or on a post adjacent to the roadway.
6 2) Speed Bumps.
7 Speed bumps shall not be used on public or private roadways in Sanford. Speed bumps are severe
8 treatments 3"-6" high and 1'-2' wide that slow drivers to speeds of less than 10 MPH. Due to their
9 abrupt rise and required low speed they can be a hazard to motorists and bicyclists.
0 SECTWN 1.4 GENERAL T TOT AND BLOCK DES1 `_ i REQUIREMENTS
1 D. General Lot and Block Design Requirements.
2 1. Area and Dimensional Requirements.
3 All lots shall comply with applicable area and dimension requirements set forth in Schedules C, D, E, F
4 and J of these LDRs.
5 2. One and Two -Family Dwelling Lots.
6 No lot or tract to be utilized for a one- or two-family dwelling located in a subdivision proposed or platted
7 after December 12, 1988, shall have a vehicular access point to a street classified as an arterial or collector
8 in the Traffic Circulation Element of the Comprehensive Plan.
9 3. Multiple -Family Dwelling and Nonresidential Use Lots.
0 Lots and tracts for multiple family dwellings or nonresidential uses that are created after December 12,
1 1988, shall have a minimum of 200' of linear frontage on an arterial or collector roadway in order to obtain
2 direct vehicular access to such one road. Lots and tracts with less than 200' of linear frontage on an arterial
3 or collector roadway shall only have vehicular access to such arterial roadway through a system of
4 common or shared vehicular access points whereby the minimum spacing between vehicular access points
5 on an arterial is 200'. Such system of common or shared vehicular access points shall be subject to
6 preliminary subdivision plan review procedures set forth in these LDRs.
7 4. Townhome Use Lots.
8 Lots and tracts for Townhome dwelling uses that are created after December 12, 1988, shall have a
9 common or shared vehicular access driveway. The separation of the common driveway from any other
0 driveway shall be a minimum distance of 150'. The distance may be reduced by the Administrative
1 Official for existing lots that are less than 150' in width.
2 5. Lot Lines.
3 Side lot lines shall be, as nearly as practical, at right angles to straight street lines and radial to curved
4 street lines.
5 6. Corner Lots.
6 Corner lots for residential use shall be provided with sufficient width and depth to permit the establishment
7 of appropriate building setback lines from both streets.
8 7. Double Frontage Lots.
9 When it is necessary to design a residential subdivision that abuts an arterial or collector, it shall be
0 designed to provide the through -lots along the arterial or collector with access from a frontage road or
1 interior local road. Access rights of these lots to the arterial or collector shall be dedicated to the
2 governmental entity having jurisdiction over the road and recorded with the deed. A decorative wall shall
3 be required at the rear of through lots to buffer residences from traffic on the arterial or collector. The wall
4 shall not be located within the public right-of-way.
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5 8. Residential Adjacent to Railroads.
6 Where a proposed subdivision contains or is adjacent to a railroad right-of-way, it shall be planned so as
7 to avoid having residential lots front on a street which runs parallel and adjacent to railroad right-of-way.
8 9. Block Length.
9 The maximum block length shall be 1,200'.
0 10. Water Access.
1 In general, canals and waterways for the purpose of providing access by water to lots within a subdivision
2 shall be prohibited.
3 11. Flag Lot Standards.
4 a. A flag lot is any lot which does not meet the minimum lot width for the corresponding zoning district
5 at the front property line. Flag lots are prohibited when their effect would be to increase the number
6 of properties requiring direct and individual access connections to the State Highway System or any
7 arterial or collector road.
8 b. Flag lots may be permitted for residential development, when it is found by the Administrative Official
9 that they are necessary to achieve planning objectives, such as reducing direct access to thoroughfares,
0 providing internal platted lots with access to a residential street, or preserving natural or historic
] resources, under the following conditions:
2 1) Flag lot driveways shall be separated by at least twice the minimum frontage requirement of that
3 zoning district.
4 2) The flag lot shall have a minimum frontage width of 20'.
5 3) In no instance, shall flag lots constitute more than 10% of the total number of building sites in a
6 recorded plat or three lots, whichever is greater.
7 4) The lot area occupied by the flag driveway shall not be counted as part of the required minimum
8 lot area of that zoning district.
9 5) No more than one flag lot shall be permitted per private right-of-way or access easement.
0 12. Lot Width -to -Depth Ratio.
l To provide for proper site design and prevent the creation of irregularly shaped parcels, the depth of any
2 lot or parcel shall not exceed three times its width.
3 13. Fire Hydrant Placement.
4 The developer shall install a fire hydrant at the first buildable lot on the side of the inbound lane. In single-
5 family residential developments, there shall be a fire hydrant, thereafter, every 800'. In multi -family
6 residential developments there shall be, thereafter, a fire hydrant every 600'. In commercial and industrial
7 developments there shall be, thereafter, a fire hydrant every 500'.
8 14. Fill.
9 All fill material required to bring the natural grade up to the specified lot grade line shall be suitable
0 material, with a maximum of 10% passing a #200 sieve, which is free of trash, wood, roots, used concrete
1 or other matter or material that would later be a detriment to the stability of a building structure, prevent
2 sufficient compaction or artificially raise the water table. The fill shall be placed in successive layers of
3 not more than 12" inches and each layer shall be compacted to a density as to prevent the later deterioration
4 or settling. A geotechnical engineer shall certify, under seal, that any fill placement over 12" above natural
5 grade meets this requirement.
6 SECTION PRIVATE C'T-R-EETQ AND GAT-ED COMML941TIES
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7 E. Private Streets and Gated Communities.
8 1. Private Streets and Roads.
9 May be permitted in accordance with the requirements of this Section and the following general standards
0 shall apply:
1 a. All private roads shall be constructed to public -road specifications and have an easement of a
2 minimum of 50' in width.
3 b. Private roads shall have all traffic control features, such as signage, striping or markers, in
4 conformance with the MUTCD.
5 c. The minimum distance between private road outlets on a single side of a public road shall be 660', or
6 less where provided by access classification and standards for State roads and local thoroughfares.
7 d. All properties served by the private road shall provide adequate access for emergency vehicles and
8 shall conform to the approved local street numbering system.
9 e. All private roads shall be designated as such and will be required to have adequate signage indicating
0 the road is a private road and not publicly maintained.
1 f. All private roads shall have a posted speed limit not to exceed 25 MPH.
2 g. All private roads shall have adequate provisions for drainage and stormwater runoff as provided in
3 Schedule O of these LDRs.
4 h. A second access connection to a public road shall be required for private roads greater than 2000' in
5 length.
6 2. Drainage and Road Construction Plans.
7 Applications for subdivision approval that include private roads shall include a drainage plan and road
8 construction plan, prepared, under seal, by a Florida licensed engineer. The Administrative Official shall
9 review private road plans for conformance with this Schedule.
0 3. Construction Permit.
1 Construction permits are required for connection to public roads. Application for road construction shall
2 be made concurrent with the creation of a lot that does not have frontage on a public road. A road
3 construction permit shall be issued after approval of the private road plan and the entire length of the road
4 shall be inspected during construction and upon completion. If found in conformance, a final use permit
5 shall be issued.
6 4. Finalized Construction and Maintenance Agreement.
7 No building permit will be issued for any lot served by a private road until the private road has been
8 constructed and approved, so that all lots to be served by the private road have access to a public road. A
9 road maintenance agreement, subject to approval by the City Attorney, shall be recorded with the deed of
0 each property to be served by a common private road. The agreement shall provide, at a minimum, for:
a. A method to initiate and finance a private road and maintain that road in good condition;
b. A method of apportioning maintenance costs to current and future users;
c. A provision that the City may inspect, and if necessary, require that repairs be made to the private road
to ensure that safe access is maintained for emergency vehicles. If required repairs are not made within
60 days of date of notice, the City may make the necessary repairs and assess owners of parcels on the
road for the cost of all improvements plus an administrative fee of 25% of total costs for management
and other services;
d. A provision that the majority vote of all property owners on the road shall determine how the road is
maintained except in the case of emergency repairs as outlined above;
e. A statement that no public funds shall be used to construct repair or maintain the road.
f. A provision requiring mandatory upgrading of the roadway if additional parcels are added to reach the
specified thresholds; and
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3 g. A provision that property owners owning property located along the road are prohibited from
4 restricting or in any manner interfering with normal ingress and egress by any other owners or persons
5 needing to access properties with frontage on that road.
6 5. Minimum Standard for Incorporation.
7 No private road shall be considered for incorporation into the public road system unless it is built to public
8 road specifications of the City and in good condition at the time of the request. The property owners shall
9 be responsible for bringing the road into conformance.
0 Roadways constructed in conjunction with multifamily or townhouse developments shall not become a
1 part of the public road system of the City whether or not they conform to the City's public roadway
2 specifications.
3 6. Required Fee.
4 An application fee will be established by the Administrative Official to cover administrative, processing,
5 and inspection costs.
6 7. Notification of Access by Private Road.
7 All purchasers of property served by a private road shall, prior to final sale, be notified that the property
8 receives access from a private road that shall be maintained collectively by all property owners along that
9 road; that the City shall not be held responsible for maintaining or improving the private road; and that a
0 right -of way easement to provide the only access to that property has been recorded in the deed for that
1 property.
2 8. Service at Public Access Point.
3 The United States Postal Service and the Seminole County School District are not required to use the
4 private road for access to the parcels abutting the private road and may require that service be provided
5 only at the closest public access point.
6 9. Entryway Gate Emergency Access Audio Override.
7 Entryway gates must be a minimum of 20' wide and equipped with an audio (siren) override device to
8 allow emergency access to the subdivision by fire/rescue, police and other emergency -response personnel.
9 The audio -override device must be submitted to the fire and rescue department for inspection and the
0 entrance gates may not be closed unless and until the City determines that the device is acceptable and in
1 good working order.
2 10. Automatic Gates Power Back Up.
3 Automatic gates shall have battery backup power.
4 11. Entryway Gate Knox Box.
5 The entryway gate must include a box, labeled "City of Sanford," with a master -keyed padlock, and the
6 box must contain a key, a card key, a code, a remote -control device, or some other means by which
7 mosquito control, animal control, code enforcement, environmental protection and utility workers may
8 gain access to the subdivision. The means of access is subject to approval by the City and the box must be
9 installed prior to the City's issuance of the certificate of completion for the subdivision infrastructure. If
0 a keypad is used, there shall be a four -digit code set aside for the Sanford fire department. The code shall
1 be determined by the fire department. A `Knox' box to override gate access is also required as a back-up
2 system. Any other utilities serving the subdivision must have similar access, and the names of such utilities
3 must be on the outside of the box containing the means of access.
4 SECTION 3.0 SIDEWALKS
5 Tiopli 2.0 SIDEWALKS
6 In designing a subdivision or development of a site the pedestrian circulation must be considered and included to
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7 improve walkabilitv and sustainability of the Citv. The followine requirements provide technical and reaulato
8 standards for sidewalk infrastructure.
9 SECT40N 3.1 GENERAL SIDEWALK REQUIREMENTS
0 A. General Sidewalk Requirements.
1 Sidewalks shall provide improved surface to serve nonvehicular circulation such as pedestrians and, unless
2 otherwise prescribed by City ordinance, bicycles. Sidewalks shall be designed to be as physically separated
3 from vehicular use areas as possible.
4 1. Required Provision.
5 Sidewalks shall be provided on each side of all streets unless it is determined not to be practical by the
6 Administrative Official, based upon sound and generally accepted engineering practices and principles
7 which decision shall be implemented by means of a development order. When it is determined that a
8 sidewalk is not practical in a particular location, the cost for the sidewalk shall be placed into the City's
9 sidewalk fund. The sidewalk fund within the City's financial management structure shall be maintained
0 and administered by the City in accordance with sound and generally accepted public fiscal practices and
1 principles and into which funds shall be deposited and from which funds may be withdrawn pursuant to
2 this Ordinance in order to facilitate the construction of public sidewalks. Subfunds may be created for
3 each area in which sidewalks are to be constructed. Funds may be used for purposes only which benefit
4 the real property for which payment has been made is located. Authorized uses for funds deposited within
5 the sidewalk fund include, but are not limited to, the following activities:
6 a. To acquire the fee simple or other interest in land, and other real property for sidewalk purposes.
7 b. To coordinate plans for sidewalk improvements and expansion with public transportation plans and
8 operations in the area of the real property for which payment has been made.
9 c. To perform such other related activities as may be appropriate to carry out the intent of this Ordinance
0 including, but not limited to, reimbursement of administrative costs, infrastructure improvements in
1 the public right-of-way, and contributing to maintenance of the public sidewalks.
2 2. Location.
3 In general, sidewalks shall be located in street right-of-way between the back of curb and the property
4 line. Sidewalks must also be located connecting all adjacent rights -of -way sidewalks to all non-residential
5 or multi -family structure entrances within a site.
6 3. Width.
7 The minimum width of sidewalks shall be 5'.
8 4. Pedestrian Easements.
9 Pedestrian easements, not less than 10' wide, may be required where deemed essential to provide
0 circulation, or access to schools, playgrounds, shopping centers, transportation, and other community
1 facilities. When utilized, pedestrian easements shall include sidewalks. In addition, pedestrian easements
2 may be utilized as an alternative location for sidewalks located in rights -of -way if approved by the
3 Administrative Official and provided that minimum right-of-way requirements are provided. Such
4 easements shall be in a form approved by the City Attorney.
5 SECTION -2... SIDEWALK CONSTRUCTION REQUIMMENT-S
6 B. Sidewalk Construction Requirements.
7 1. Sidewalk.
8 Sidewalks shall be constructed of Portland cement concrete with a minimum strength of 3,000 pounds per
9 square inch and a minimum thickness of 4" except at vehicular access points or driveways in which case
0 sidewalks shall be a minimum of 6" thick.
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1 2. Sidewalk Subgrade.
2 Excavation shall be made to the required depth and the subgrade or base upon which the sidewalk is to be
3 set shall be compacted to a firm, even surface, true to grade and cross section, by means of watering,
4 rolling or tamping. The subgrade shall be compacted to a minimum of 95% of the modified proctor (ASTM
5 D-1557) maximum density and a minimum LBR of 40 and shall be moist at the time the concrete is placed.
6 3. Expansion Joints.
7 Transverse expansion joints shall be constructed at intervals of 30'. Slabs shall be separated by traverse
8 pre -molded expansion joint filler 1/4" thick for the full width of the slab, extending from the bottom of
9 the slab to 1/4" of its top surface.
0 a. The slab between expansion joints shall be divided into sections 5' in length by transverse contraction
1 joints formed by a jointing tool. Contraction joints shall be a minimum of one and 1 r/2" deep. Where
2 slabs are more than 7' in width, control joints shall be formed longitudinally to secure uniform blocks
3 approximately square. The contractor may use open type of or sawed contraction joints:
4 1) Open -type Joints:
5 Form open type contraction joints by staking a metal bulkhead in place and depositing the concrete
6 on both sides. After the concrete has set sufficiently to preserve the width and shape of the joint,
7 remove the bulkhead. After finishing the sidewalk over the joint, edge the slot with a tool having
8 a 1 /2" radius.
9 2) Sawed Joints:
0 If electing to saw the contraction joints, cut a slot approximately 3/16" wide and not less than 1/2"
1 deep with a concrete saw after the concrete has set, and within the following periods of time: joints
2 at not more than 20' intervals: within 12 hours after finishing; remaining joints: within 96 hours
3 after finishing.
4 b. Expansion joints shall be formed around all appurtenances such as manholes, utility poles, etc.,
5 extending into and through the sidewalks. Pre -molded expansion joint filler 1/4" thick shall be installed
6 at these joints.
7 4. Finishing.
8 Provide the concrete with a broom finish. Ensure that the surface variations are not more than 1/4" under
9 a 10' straightedge, or more than 1/8" on a 5' transverse section. Finish the edge of the sidewalk with an
0 edging tool having a radius of 1/2".
1 5. Curb Ramps and Detectable Warning Surfaces.
2 Detectable warnings are intended to warn people with visual disabilities using a curb ramp before they
3 enter the path of motor vehicles on the street or alleys (not at driveways) and before crossing railroad
4 tracks.
5 a. Applicability.
6 Curb ramps conforming to ADAAG shall be installed when an alteration to a street or sidewalk occurs
7 or when a new sidewalk is constructed. Ramps will be installed or upgraded at all legal crossings
8 within the limits of grind and pave contracts. Existing ramps will be removed and new ramps
9 constructed where the existing ramp:
0 1) does not currently conform to the ADAAG but it is technically feasible to conform; or
1 2) surfaces are brick pavers; or
2 3) existing concrete is not sound.
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b. Plan Requirements.
All new construction shall be designed on plan drawings to verify that a design conforms to the
ADAAG. This requires a working drawing that shows existing and proposed curbs, pavement
markings, traffic control signs, traffic signals, elevations (gutter, top of curb, ramp and sidewalk),
dimensions, R/W lines, trees, street furniture, inlets, parking meters and utility covers. The City
reserves the right to request this information (drawn at 1 "= 10') be submitted prior to approval of
construction drawings and permits. Alterations are typically designed in the field and do not include
design drawings to verify that ADAAG requirements are satisfied. It is the responsibility of the
contractor and field engineer to verify that the "most useable" solution is constructed.
c. Contrast.
In addition to the ADAAG requirements for contrasting colored surfaces, safety yellow is shall not be
the contrasting color due to aesthetic reasons. In addition, since dogs perceive black as a hole and walk
around black pavement, black is not an acceptable color for detectable warning surfaces. The surface
will be red or brick -red in color.
d. Types of Detectable Warning Surfaces to be installed.
1) Detectable Warning, Type B — Detectable warnings in new ramp construction will consist of pre-
cast clay or ceramic paving bricks on a 1'/4" sand bed on a 5" concrete base. 31/2" high forms
(nominal 2x4 lumber) are used to create a tub for the bricks to sit in.
2) Existing concrete ramps shall be reconstructed and surface applied or cast in place mat shall be
installed.
SECTION 4.0 EASEMENTS AND OTHER UTILITIES
QLnUONT 3.0 T TTTLiTIME `
To provide adequate public services to subdivided property it is necessary for specific easements to be identified.
designated. or dedicated to either the citv or other necessary parties. The followine sections provide the technical
and regulatory standards for the application of these easements.
T40N 3 1 EASEMENTS
C`EMENTTS
9 A. Easements.
0 The Administrative Official may require utility easements when a rational nexus exists and a rough
1 proportionality test supports the requirement, in a form approved by the City Attorney, for all uses when such
2 an easement is necessary to implement and further the City's public facility master plans. Such easements
3 shall:
4 1. Be identified and dedicated on the face of site plans, preliminary subdivision plans and final plats.
5 2. Be a minimum width necessary to accommodate the public facility in question.
6 3. At a minimum, provide a 10' front property line easement.
7 SECT -ION 3.2 OT14ER UTILITIES
TTIES
8 B. Other Utilities.
9 1. Electric Supply System.
0 In every subdivision, provision shall be made for a satisfactory electric supply system through the
1 cooperation of the appropriate supplier. The owner or developer of any subdivision shall be required to
2 provide underground wiring for electrical service.
3 2. Streetlights.
4 All proposed developments shall provide adequate street lighting using LED fixtures operating in the
5 spectrum between 3000K and 4000K and conform to the following specifications:
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6 a. Street lighting design shall be consistent with AASHTO GL-6 and the Federal Highway Association
7 Lighting Handbook, latest edition.
8 b. Street lighting on adjacent roadways may be required to be installed or improved to provide safe
9 ingress/egress to the development when a rational nexus exists and a rough proportionality test
0 supports the requirement.
1 c. Street Light Standard- Street lights shall conform to specifications illustrated on Figure N-5. The use
2 of decorative light poles and fixtures is encouraged.
3 d. Minimum distance from the face of pole to edge of roadway or face of curb shall be 4' for an urban
4 roadway and 6' for an existing rural roadway. Maximum distance shall be established by the City.
5 e. The developer or property -owner's association shall be responsible for the maintenance and usage
6 costs of the streetlights including, but not limited to, those located within public right-of-way with the
7 binding obligation being memorialized in a document approved by the City Attorney which runs with
8 the land.
9 3. Telephone & Cablevision Supply System.
0 In every subdivision, provisions shall be made for a functioning telephone communications supply system
1 and television cable system with the cooperation of the appropriate supplier. In all cases, all wiring shall
2 be placed underground, rather than on poles or towers.
3 SECTION 5.0 STREET CONSTRUCTION
4 SECTION 4.0 STREET CONSTRUCTION
5 All street cross sections, engineering plans and improvement plans shall meet the minimum requirements as set
6 forth in these regulations. Street construction shall conform to the following requirements:
7 A. Street Specifications.
8 1. Grades.
9 Minimum street grade shall be 0.30% for roads with standard (Type F) curb and gutter and 0.50% for
0 roads with Miami curb and gutter or other treatment; maximum street grade shall be 8.0%.
1 2. General Clearing and Excavation Requirements.
2 All rights -of -way shall be selectively cleared and grubbed for their entire width according to current FDOT
3 specifications. Such activities shall avoid damage to natural vegetation to be preserved on the site.
4 Excavations and depressions must be properly backfilled and compacted. Gumbo and other plastic clays
5 shall be removed within the area one foot below the subgrade and extending horizontally beyond the edge
6 of curb. Muck and peat shall be completely removed within the right-of-way. Trash, brush, trees, etc., may
7 be burned within the right-of-way in a lawful manner and as approved by the Administrative Official.
8 3. Fill.
9 All fill material required to bring the grade up to the specified profile grade line shall be suitable material,
0 with a maximum of 12% passing a #200 sieve, which is free of trash, wood, roots, used concrete or other
1 matter or material that would later be a detriment to the stability of the roadbed or prevent sufficient
2 compaction. The fill shall be placed in successive layers of not more than 6" for the full width of the cross
3 section and each layer shall be compacted to a density as to prevent the later deterioration, settling or
4 failure of the pavement. No subgrade is to be covered where the density is found to be less than 98% of
5 the modified proctor maximum density as determined by AASHTO T-180. A geotechnical engineer shall
6 certify, under seal, that the fill meets this requirement prior to placement of the subbase.
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7 4. Subbase.
8 Subbase means that portion of the roadbed immediately below the base course, the limits of which
9 customarily include those portions of the roadbed shown in the plans to be constructed to a specific bearing
0 value. Unless otherwise approved by the Administrative Official, the subgrade section shall be considered
1 to extend to 12" below the bottom of the base and 12" beyond the base on each side. Subgrade shall extend
2 12" beyond the back of the curb and gutter. This work shall consist of bringing the bottom of excavations
3 and/or top of embankments of the roadway, between the outer limits of the paving or base course, to a
4 surface conforming to the grades, lines and cross sections shown on approved plans, of uniform density
5 and stability ready to receive the base course.
6 In no case shall any sub -base be covered that does not have a Limerock Bearing Ratio of 40% per-eent or
7 greater or a Florida Bearing Value of 75 pounds per square inch.
8 a. Care of Subgrade.
9 In order to preserve the integrity, density and compaction of the subgrade, vehicles shall not be
0 permitted on the finished subgrade.
1 b. Timing of Subgrade Stabilization.
2 No area shall be stabilized or compacted until all the utilities within that area have been installed. All
3 underground utilities shall be in place before sub -base is stabilized. At no time shall any base material
4 or pavement be laid before the utilities are in place.
5 c. Density Requirement for Subgrade.
6 All subgrades shall be compacted to a density of at least 98% of the maximum density as determined
7 by AASHTO T-180 prior to placement of concrete.
8 5. Base.
9 a. Nonresidential Areas.
0 Base for streets serving nonresidential uses shall be lime rock, soil cement or an equivalent material
1 for which test data and design criteria have been approved by the Administrative Official. The
2 minimum acceptable thickness of either material required in these areas shall be 10" inches. If the base
3 is cut, it shall be replaced with 12" of required material with densities taken on each lift, not to exceed
4 6" per lift.
5 b. Residential Areas.
6 Base for streets serving residential uses shall be lime rock, soil cement or an equivalent material for
7 which test data and design criteria have been approved by the Administrative Official. The minimum
8 acceptable thickness of either material required in these areas shall be 8". If the base is cut, it shall be
9 replaced with 12" of required material with densities taken on each lift, not to exceed 6" per lift.
0 c. Performance.
1 Regardless of type or area served, base material shall be compacted to a density of no less than 985 of
2 maximum density as determined by AASHTO T-180.
3 d. Width.
4 All bases shall be 1' wider (extended for a distance of 1' on each side) than the outer edge of the
5 improved surface (curb).
6 e. Forms.
7 No form boards will be required unless, in the determination of the Administrative Official, based
8 upon sound and generally accepted construction practices and principles, the contractor is not taking
9 precautions to obtain the full depth at the edges.
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0 f. Prime Coat.
1 Appropriate prime coat and sand shall be applied to all base courses 24 hours prior to paving. The
2 spread rate of the prime coat will be a minimum of 1% and the sand will be rolled in with traffic roller.
3 g. Water Table.
4 The seasonal high ground water level shall be a minimum of 1' below the bottom of the base of the
5 road.
6 h. Underdrains.
7 Underdrains may be required in areas with poorly drained soils or areas with known high groundwater
8 level conditions or as determined by the Administrative Official. Roads constructed with underdrains
9 to control the water table shall be private and not subject to City maintenance.
0 6. Pavement Types and Thickness.
1 Surface courses shall be a minimum of 2" thick and comprised of SP12.5 or S-I compacted asphaltic
2 concrete. The developer shall install a minimum of 1" of SP9.5 or SIII asphaltic concrete prior to the
3 construction of the development. After the last unit is constructed or upon direction of the Administrative
4 Official, the developer will remove the asphalt and install 2" of SP12.5 or S-1 asphaltic concrete. The
5 developer is responsible for maintenance of the roadway and stormwater drainage during this time frame.
6 A performance bond in the amount of 110% of the cost of installing the 2' of SP 12.5 asphaltic concrete
7 must be provided in a form acceptable to the City. In cases where there will be no significant
8 loading/unloading, turning of construction vehicles or use of cranes or other damaging construction
9 equipment, the Administrative Official may approve a single lift of 2" of SP9.5, SP12.5. S1 or SIII. Upon
0 completion of the 2" paving the developer shall provide a maintenance bond for the roadway for three
1 years at 20% of the certified cost of construction in a form acceptable to the City.
2 The Administrative Official may approve, disapprove or approve with conditions the use of alternative
3 surface types including but not limited to pervious concrete or impervious Portland cement concrete.
4 Alternative surface types shall require design and specifications certified by a licensed professional
5 engineer.
6 7. Open Road Cuts.
7 If open road cutting is approved by the Administrative Official, the open cut repair base shall be 8" of
8 Reclaimed Asphalt Pavement (RAP), placed in two 4" lifts and meeting the requirements of Section 283
9 of the Standards and Specifications for Road and Bridge Construction and topped with 2' of SP9.5 or type
0 SIII asphalt. An asphalt overlay, 1" thick, shall be provided over the entire width of the roadway and 35'
1 in length, centered on the open cut. In addition, all sides of the open cut shall be milled to a depth of F
2 and overlayed and rolled to density.
3 The Administrative Official may approve, disapprove or approve with conditions the use of alternative
4 surface types such as pervious concrete or impervious Portland Cement concrete. Alternative surface types
5 shall require design and specifications certified by a licensed professional engineer.
6 8. Pavement Specification Standards.
7 The construction of the asphaltic concrete, including thickness tolerance, shall conform to Section 331
8 and 333 of the Standard Specifications for Road and Bridge Constructions. The construction of concrete
9 pavements shall conform to Section 350 of same.
0 9. Riding Surface.
1 The line and grade of the riding surface shall conform to approved improvement or engineering plans and
2 provide smooth riding surface free from bumps and abrupt changes in grade. Concrete surfaces shall have
3 a uniform non -slip finish that shall be provided by a brushing of the surface with a stiff -bristled broom or
4 by dragging a "burlap drag" over the surface just before the water sheen disappears.
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5 10. Intersections and Required Conduit.
6 Intersections and other transition areas shall be designed and built to carry the drainage without blockage
7 or pooling.
8 In addition, the Administrative Official shall have the authority to require, in order to provide for
9 convenient placement of future utilities, a PVC conduit with a minimum diameter of 6" to be installed at
0 a depth of 36" and a distance of 10' from the outer edge of curb of the respective intersecting street. Such
1 conduit shall extend a minimum of f5' beyond the outer edge of curb.
2 11. Curb and Gutter Required.
3 All streets shall be provided with curbs. Standard curb and gutter (Type F) or Miami curb types shall be
4 utilized for all streets provided that flush curb types shall be permitted when rural type street sections are
5 utilized. Curbs shall be of integral type and shall conform to specifications illustrated on Figure N-6.
6 Construction of curb and gutter of materials other than Portland Cement concrete shall not be acceptable.
7 a. Curbs in Parking Areas.
8 Curbs used in parking lots shall be poured in place Portland Cement Concrete. Bumper stops shall be
9 concrete and may be pre -formed.
0 b. Strength Requirements.
1 Concrete for all curb and gutter and driveway aprons shall have a 28-day compressive strength of at
2 least 3000 pounds per square inch.
3 c. Joints.
4 Where metal templates are used for joint construction, the curb and gutter shall be constructed in
5 uniform sections 10' in length except where shorter sections are necessary for closures, but no sections
6 shall be less than 4'. Sections may be formed by the use of construction joints or by the use of metal
7 templates. If metal templates are used they shall be held firmly in place during the pouring of concrete
8 and shall be left in place until the concrete has set sufficiently to hold its shape. Contraction joints
9 shall be constructed at all inlets, all radius sections, and all points where operation cease for any.
0 d. Curb and Gutter Machine.
1 Should the contractor elect to use a curb and gutter machine, the track of the machine shall be placed
2 on a thoroughly compacted and stable subgrade which will not yield under the weight of the machine.
3 In no case will loose material be permitted under the track. As a specific requirement for machine -laid
4 curb and gutter contraction joints shall be sawed at intervals of 10' feet except where shorter intervals
5 are required for closures, but no joints will be required as in set forth in Paragraph 3. above for machine
6 laid curb and gutter.
7 12. Headwalls.
8 Headwalls, inlets and bridges shall be designed in accordance with Florida Department of Transportation's
9 Standard Specifications for Roads and Bridges Construction, latest edition.
0 13. Specifications for Miscellaneous Concrete Improvements.
1 Concrete project improvements shall have a minimum compressive strength of 3,000 pounds per square
2 inch. Forms for such improvements made of either wood or metal. They shall be straight, free from warp
3 or bends, and of sufficient strength, when staked, to resist the pressure of the concrete without springing.
4 If of wood, it shall be of approved section and shall have a flat surface on top. For all curb and gutter
5 constructed on a radius, the contractor will be required to use flexible forms, unless otherwise permitted
6 by the engineer. Forms shall have a depth equal to the plan dimensions for the depth of concrete being
7 deposited against them.
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a. Placing Concrete.
The concrete shall be placed in the forms to the depth specified in layers four or five inches thick and
tamped and spaded until mortar entirely covers its surface. The top of the structure shall be floated
smooth and the edges rounded.
b. Temperature Limitation.
No concrete shall be placed when the atmospheric temperature is below 35 degrees F. After concrete
has been placed, if the temperature drops below 35 degrees F. during curing, the concrete shall be
adequately protected.
c. Curing.
Curing materials shall be white -pigmented membrane curing compound, wet burlap or polyethylene
film. At no time shall more concrete be laid than can be immediately and properly covered, nor when
already laid is not being properly covered, nor when already laid is not being properly cured. Failure
to provide sufficient cover material or sufficient water to adequately take care of curing and all other
requirements shall be cause for immediate suspension of concreting operations. The entire surface of
the concrete shall be cured for a total period of at least 72 hours, except where high -early -strength
cement is used, the total curing time may be reduced to 48 hours.
d. Expansion Joints.
Expansion joints shall be constructed at all inlets, all radius sections, all points where operations cease
for any considerable time, such as the end of the day's run, etc., and at intervals of not more than 150'
on straightaways.
SECTION 4.1 A T XI T A A V 11 �iIES (RIGHT f1, LEFT TURN T A NEED`\
B. Auxiliary Lanes (Right and Left Turn Lanes)
The principal thrust in the development of marginal access standards is to reduce conflict between driveway
entrances and through traffic. One method of reducing conflict is to provide a refuge area where vehicles can
leave the through traffic lanes, slow down and accomplish the turn. Auxiliary lanes, as defined below, provide
that capability and consequently may be required based upon the speed of the accessed roadway, the
development's projected right and left turn volumes, and/or construction conflicts with existing
drives/streets/roads.
1. Requirements.
A right turn section is required on roadways with a posted speed limit of 40 MPH and greater and/or
development with a daily trip end rate of 500 ADT or greater.
A left turn lane section is required for any development that accesses a classified road of minor collector
and above or has a posted speed of 35 MPH or higher. An inbound radius of 50' at development or higher,
or a daily trip end rate of 500 ADT or higher, then a right turn section will be additionally required.
Additionally, if either terminus of the of the proposed auxiliary lane section is within 300' from an existing
auxiliary lane terminus than a total 36' section is required to eliminate weaving or "Hour Glass" sections.
See Figure N-7, Taper Striping Details, for design and markings specifications.
2. Auxiliary Lane.
Figure N-8, Auxiliary Lane(s) Detail illustrates typical taper dimensions "A". A taper refers to the
triangular paved surface that transitions the highway pavement to accommodate an auxiliary lane or a 36'
wide pavement surface with markings identifying the transition area for the same purpose.
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9 The length of the taper is based on a roadway's design speed; i.e., L = Speed x Width. Examples of taper
() length are given for different design speeds in Figure N- 8, Recommended Taper Length for Various
1 Design Speeds. Storage lanes, labeled "B" and "C" in Figure N-8, are the 12' "refuge" area used to
2 accomplish a right or left turn without impeding traffic. The storage and tapers combine to form either the
3 right or left turn lanes. The length is determined as shown in Figure N-8.
4 3. Exceptions.
5 The Administrative Official has the authority to adjust the requirements due to right-of-way constraints.
6 SECTION 6.0 ACCESS STANDARDS AND SHARED ACCESS REQUIREMENTS
7 The followine reeulations provide specific standards for standard or shared vehicular access and common access
8 primarily for non-residential development, unless otherwise indicated.
9 QlC�rrTvACCESS STANDARDS�zbNaozz-mzDTACCESS -rEQvrrE4rarrry
0 SECTION 5.1 ACCESS STANDARDS
1 A. Access Standards.
2 1. Purpose.
3 The purpose of these access standards is to protect roadway operations and the roadway capacity by
4 ensuring the adequate functioning of intersections and the adequate design, efficient operation and
5 continued maintenance of the road facilities.
6 2. General Access Standards.
7 The following access standards shall apply:
8 a. Minimum number of access points shall adequately serve the development. Joint and Cross Access
9 Easements and dedication of access rights may be required to protect the safe and efficient operation
0 of the accessed streets.
1 b. In order to provide ease and convenience in ingress and egress to private property and the maximum
2 safety with the least interference to the traffic flow on public streets, classified major collector and
3 above, the number and location of driveways shall be regulated by the dedication of access rights to
4 the City or other governmental entity that has jurisdiction over the road.
5 c. Street stubs to adjoining undeveloped areas shall be provided when required to give access to such
6 areas or to provide for proper traffic circulation. Streets stubs in excess of 250' shall be provided with
7 a temporary cul-de-sac turnaround.
8 d. Auxiliary lanes, median modifications or other design features may be required.
9 e. All lots shall front on a paved road. A development shall abut, or have as its primary access, on a street
0 paved to City standards of this regulation. All abutting roadways providing direct access to the
1 development shall be paved to the nearest public paved road. Where paving is required on the abutting
2 roadway outside of the development frontage, then paving only to the development access points may
3 be allowed provided that in no case shall the length of required paving be less than the length of the
4 development's frontage along the abutting roadway.
5 f. The following permits are required prior to a building permit being issued
6 1) An FDOT driveway permit is required for all proposals to access State roads.
7 2) A Seminole County driveway or access permit is required for all proposals to access any County
8 right-of-way or easement.
9 3) A City permit is required for all proposals to access City right-of-way.
0 g. All nonfunctioning roadway access points shall be removed. All unpermitted or hazardous roadway
1 access points shall either be removed or reconstructed to City standards. All disturbed rights -of -way
2 shall be restored to State, County or City standards as determined by the roadway's jurisdiction.
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3 h. Accessways designed to serve nonresidential uses shall not be permitted to be located in residential
4 zoning districts, including, but not limited to, the agricultural zoning district or in the residential areas
5 of a Planned Development (PD) zoning district. Design of driveways serving non-residential
6 developments shall not direct traffic into residential areas.
7 i. Prior to any form of vertical construction, a stabilized access and functioning fire hydrant shall be in
8 place on any construction site.
9 3. Access Limitations.
0 a. No new residential development shall create any parcels zoned for single-family or duplex residential
1 uses having access on an arterial.
2 b. Parcels created after adoption of this Schedule shall have a minimum of 200 linear frontage feet in
3 order to gain access to the arterial unless one of the following conditions is met:
4 1) Access to the lot is provided jointly through existing cut(s) of an adjacent property.
5 2) Access to the lots is to be provided from a frontage road paralleling the arterial that has been
6 planned and officially approved by the County.
7 3) For corner parcels, access will be provided to the collector facility or lower classification where
8 minimum arterial frontage requirements are not satisfied.
9 4. Number and Spacing of Driveways.
0 In general, the minimum number of driveways necessary to adequately accommodate access to and from
1 the site will be permitted.
2 a. Spacing between driveways shall conform to the table below based on functional classification.
3 Distance is measured from nearest edge to edge.
Minimum Separation
Arterial Major Collector Minor Collector Local
330' 330' 200' 200'
4
5 b. Driveways on opposite sides of any undivided street classified local, collector or arterial shall either
6 be aligned on the same centerline or be offset to a minimum of 200' feet measured from centerline to
7 centerline.
8 c. For developments that request more than one two-way driveway, based upon parcel size, projected
9 trip generation of the site, amount of roadway frontage and other appropriate design considerations,
0 additional driveways may be permitted if all other provisions of the standards are met.
1 5. Driveway Design.
2 Driveway design will vary depending upon a number of conditions including functional classification of
3 the accessed roadway, land use requiring the driveway, projected ADT and/or peak hour traffic using the
4 driveway, vehicle type(s) using the driveway, speed limit of accessed roadway and other design features
5 of the site itself or surrounding area. See Figures N-9 and N-10 for a details of driveway design.
6 a. Driveway Types.
7 1) Minor Driveway
8 The minimum separation distance from the edge of pavement at any ingress or egress minor
9 driveway to the edge of pavement of an existing or planned adjacent driveway or street shall be
0 50'. This type of driveway should provide service for a maximum of an average peak hour inbound
1 right turn volume of 40 vehicles. Minimum return radii shall be 35' from the edge of pavement.
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2 2) Intermediate Driveway.
3 The minimum separation distance from the edge of pavement at any ingress or egress intermediate
4 driveway to the edge of pavement of an existing or planned adjacent driveway or street shall be
5 one hundred 100'. This driveway should provide for a maximum average daily trip volume of
6 2,000 vehicles and/or a maximum average peak hour volume of 200 vehicles. Minimum radii shall
7 be 35' from the edge of pavement.
8 3) Major Driveway.
9 The minimum separation distance from the edge of pavement at any ingress or egress major
0 driveway to the edge of pavement of an existing or planned adjacent driveway or street shall be
1 200'. This driveway should provide for a maximum average daily trip volume of 5,000 vehicles
2 and/or a maximum average peak hour volume of 500 vehicles. Minimum return radii shall be 50'
3 from the edge of pavement.
4 4) Access Drive.
5 Access drives that are limited to right-in/right-out shall have a concrete island using mountable
6 FDOT curb.
7 5) Single Family Driveway.
8 The minimum separation distance from the edge of pavement of any ingress/egress single family
9 driveway to the edge of pavement of an existing or planned adjacent driveway shall be 10'.
0 Distance from a drivewa try parallel street pavement shall be no less than 35'. Single family
1 corner lots with less than 60' of frontage may reduce the 35' distance by an equivalent percentage
2 amount. Example: A 40' lot is 33% less width than the 60' minimum, therefore if 35' was reduced
3 by the same percentage a driveway could now be 11.5 feet closer at 23.5 feet.
4 b. Drivewav Widths.
Type Minimum
Maximum
Additional Lane
Residential
9'
18'
n/a
Non -Residential
One -Way 16' *
20'
12'
Two -Way 24'
40'
n/a
Notes:
* 16' paved (20' unobstructed)
Widths to be measured at the point of tangency
of the driveway.
5 SECTION 5. G0 114MON VE141014'rAR AGGESS=FP S
6 B. Common Vehicular Access Points.
7 1. Applicability.
8 Common vehicular access point refers to an ingress/egress point used by multiple properties or parcels to
9 manage traffic flow from or to a public right-of-way, The Administrative Official shall require the
0 provision of common vehicular access points between abutting lots or tracts when all of the following
1 criteria are met:
2 a. The proposed use is non-residential or mixed use.
3 b. The lot or tract has frontage on a street classified as a major thoroughfare in the City's Comprehensive
4 Plan.
5 c. The provision of common vehicular access point and related common access ways will help mitigate
6 future adverse transportation impact of the proposed use upon traffic safety and vehicular operating
7 capacity of the major thoroughfare in question.
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8 d. The existing or anticipated land uses adjacent to the lot or tract in question are generally of a similar
9 or compatible character to the proposed use of the lot or tract in question.
0 e. The provision of common vehicular access points between lots or tracts is not impractical due to the
1 configuration of existing buildings, structures or other related circumstances.
2 2. Design of Common Vehicular Access Points.
3 When common vehicular access points are required, the following design criteria shall apply:
4 a. Common vehicular access points shall provide two-way traffic circulation to accommodate a 12' wide
5 access way in each direction.
6 b. Common vehicular access points should be located between the parcel line with frontage on the major
7 thoroughfare and the required front yard building setback or base building line, whichever is greater.
8 c. Stub -outs and other design features shall be provided to the parcel line in question in order to tie
9 together on -site vehicular traffic circulation of abutting properties.
0 d. Off-street parking, common vehicular access ways and related facilities shall be arranged in a manner
1 that coordinates on -site vehicular circulation between abutting lots and tracts.
2 3. Submittal of Draft Common Vehicular Access Point Agreement.
3 When a common vehicular access point agreement is required, a draft of such agreement, easement or
4 other similar instrument shall be submitted with a proposed site plan or a proposed preliminary subdivision
5 plan, whichever is applicable, for review and approval by the City Attorney.
6 4. Recording and Evidence of Common Vehicular Access Point Agreement.
7 All common vehicular access point agreements, easements or other similar legal instruments required by
8 the provisions of this Schedule shall be in a form approved by the City Attorney and recorded in the
9 Official Record of the County. A copy of such recorded agreement, easement or instrument shall be
0 provided to the Administrative Official prior to the issuance of a site development permit or certificate of
1 completion.
2 5. Identification of Common Vehicular Access Point Agreements on the Zoning District Map.
3 Upon receipt of evidence of common vehicular access point agreement, the Administrative Official shall
4 cause such agreement, in a form approved by the City Attorney, to be recorded in the Official Records of
5 the County
6 6. Temporary Vehicular Access Points.
7 When the lot or tract in question is developed prior to an abutting lot or tract, a temporary vehicular access
8 point on a major thoroughfare may be approved by the Administrative Official provided, however, that a
9 condition of approval of such temporary vehicular access point shall be removal of same when
0 development of the abutting lot or tract provides common vehicular access and a coordinated system of
1 on -site traffic circulation for both premises. The Administrative Official shall notify the owner of record
2 of the parcel in question as to when the temporary vehicular access point shall be removed and any
3 applicable conditions for its removal. The owner shall be responsible for all costs involved in removing
4 the temporary vehicular access point.
5 SECTION 7.0 SOLID WASTE CONTAINER REQUIREMENTS
6 c rTION 6.0 ROT In- W A 9T-I !`MATT A TATL'D D F201 TTD r- 4'ATTQ
7 A. Front End Loaded Refuse Container Location Requirements.
8 No front end loaded refuse container shall be located within any required front or street side yard setback. No
9 such container shall be located in any required parking space or vehicular use area, or in any required buffer
0 yard or landscaping area.
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1 1. Service Access.
2 Front end loaded refuse container sites shall be provided which allow refuse vehicle service access without
3 manually moving the container(s) of service. 50' of clear backup as measured perpendicular from the
4 screen areas shall be provided from the face of the refuse containers' screening unless otherwise approved
5 by the City upon a finding being made that the reduction is necessary to provide property right enjoyed
6 by others in the same zoning district, and will not be detrimental to public health, safety, and welfare. No
7 encroachment into this area by parking spaces, non -driveway sidewalks, or landscape areas shall be
8 allowed.
9 2. Siting Obstructions.
0 No front end loaded refuse container shall be sited within 6' of any building/structure, nor sited below
1 obstructing roofs, eves, or wires nor sited adjacent to any other obstruction to the container dumping
2 process. The Administrative Official may approve an exception to this is if the enclosure is designed as
3 part of the main building it serves such as a restaurant.
4 3. Container Pads.
5 Front end loaded refuse container pad(s) shall be provided for all rear end loader containers and shall be
6 constructed either of, as a minimum 3,000 pounds per square inch concrete 6" inches thick with 6" x 6" -
7 10' x 10' wire mesh or 43 steel reinforcing bars on 12" centers in each direction , or as approved by the
8 City upon a finding being made that the reduction is necessary to provide property rights enjoyed by others
9 in the same zoning district, and will not be detrimental to public health, safety and welfare. A 6' long
0 approach slab or of identical width, thickness, and composition to the container pad shall also be
1 constructed adjacent and of equal slope to said pad(s).
2 4. F.E.L. Refuse Container Screening Requirements.
3 FEL refuse containers shall be opaquely screened from view from public streets and adjacent properties
4 to a height of at least 6', or 6" higher than the height of the container (whichever is higher). This screening
5 may be achieved by walls, landscaping or buffer yards, or by virtue of the location of the container on the
6 building site.
7 5. Drains.
8 Drains for the dumpster container pad shall not discharge into the stormwater system. Drains that connect
9 to the sanitary sewer system shall be covered in a manner to prevent rainwater getting into the drain and
0 into the sanitary sewer system.
1 B. Roll -off Compactor Container Location Requirements.
2 No roll -off compactor container shall be located within any required front or street side vard setback. No such
3 container shall be located in any required parking space or vehicular use area. or in any required buffer yard
4 or landscaping area.
5 1. Container Pads.
6 Roll -off compactor container pad(s) shall be provided for all roll -off compactor containers, and shall be
7 constructed of minimum 3,000 pounds per square inch concrete, steel reinforced, 6" thick, and shall
8 comply with the following minimal dimension requirements for each container: 10' wide by 20' long.
9 2. Service Access.
0 A paved service vehicle access apron constructed to a minimum HS-20 capacity requirement and
1 extending a minimum of 45' in front of each roll -off compactor container is required. Service height
2 clearance of 25' is required in the container service access area.
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3 3. Electrical Requirements.
4 The industry recommendations for roll -off compactor electrical requirements are: 3 phase, 460-480 volt,
5 60 amps. electrical service to each compactor location. Other electrical requirements may be approved by
6 the City.
7 SECTION 8.0 MATERIALS AND TESTING
8 SECTIO T 7 !1 r A TL D T A T S A NID Tom' STTAT!'`
9 The owner shall retain an independent testing laboratory. The testing laboratory performing field sampling and
0 field testing shall be certified by the American Concrete Institute. Testing results shall be signed by a licensed
1 professional engineer. Testing of materials set forth in this Schedule shall conform to the following requirements
2 and procedures:
3 A. General Testing of Materials.
4 Testing procedures shall provide the following information to the Administrative Official:
5 1. Subgrade and shoulders.
6 Width, depth, LBR and density.
7 2. Base.
8 Width, depth and density.
9 3. Surface.
0 Width, depth, extraction, gradation, density, asphalt content and stability.
1 4. Soil cement.
2 Conform to Portland Cement Association specifications.
3 B. Concrete.
4 Concrete shall have a minimum compressive strength of 3,000 pounds per square inch unless otherwise
5 prescribed in these LDRs. Test requirements applicable to concrete shall be as follows:
6 1. Test core cylinders spaced at maximum intervals of 100' shall be required.
7 2. The Administrative Official shall exercise the authority to prescribe frequency of truckloads of material
8 from which a cylinder shall be taken based upon public safety issues and related pertinent development
9 issues.
0 3. The testing laboratory shall conform to the applicable requirements of ASTM E329-77 (1983) Standard
I Recommended Practice for Inspection and Testing Agencies for Concrete, Steel and Bituminous Materials
2 as Used in Construction.
3 4. The mixture shall contain no more water than is necessary to produce concrete that is workable and plastic.
4 The minimum slump necessary to place the concrete satisfactorily shall be used. Slumps shall be
5 maintained so as not to exceed 2" - 4 '/z" for non -vibrated placement and 3", plus or minus, 1 '/2" for
6 vibrated placement.
7 5. The concrete shall be tested for compressive strength and copies of results of such tests shall be submitted
8 to the Administrative Official.
9 6. All concrete test failures shall result in removal of the section in question by the developer or such other
0 actions shall be taken as directed by the Administrative Official. Additional testing may be required prior
I to removal in case of a bad cylinder.
2 C. Asphalt.
3 Certification of conformity to the Standard Specifications for Road and Bridge Construction, latest edition
4 shall be provided.
N-25
XX/XX/XX Retum to
Ord. No. xx-xxxx Table of Contents
5 D. Sidewalks.
6 Testing of sidewalks shall not be required unless otherwise prescribed by the Administrative Official based
7 up sound and generally accepted development standards and principles.
8 SECTION 9.0 CONSTRUCTION AND INSPECTION BY THE CITY
9 SECTION 8.0 CONSTRUCTION ARID TATCAT CTIO T BY T-14E GITV
0 Any work requiring a City inspection shall be accomplished during normal working hours unless prior
I arrangements are made to facilitate such inspections, and all fees are paid in advance with an additional fee for
2 after -hour inspections.
N-26
xx/xx/xx Retum to
Ord. No. xx-xxxx Table of Contents
SECTION 10.0 FIGUREALLUSTRATIONS 1-15
FIGURE
TITLE
N-1
STANDARD CURB & GUTTER ROADWAY SECTION
N-2
TYPICAL SWALE SECTION FOR EXISTING ROADWAYS
N-3
STANDARD CONCRETE VALLEY GUTTER
N-4A
ASPHALTIC CONCRETE SPEED HUMP
N-413
ASPHALTIC CONCRETE SPEED TABLE
N-5
STREETLIGHT STANDARDS
N-6
ALTERNATE CURB SECTIONS
N-7
TAPER STRIPING DETAIL
N-8
AUXILIARY LANE(S) DETAIL
N-9
DRIVEWAY DETAIL WITH CURB & GUTTER
N-10
DRIVEWAY DETAIL WITH SWALE
N-11
TYPICAL STREET IDENTIFICATION SIGN
N-12
MINIMUM DESIGN ELEMENTS FOR SOLID WASTE ENCLOSURES (SINGLE)
N-13
MINIMUM DESIGN ELEMENTS FOR SOLID WASTE ENCLOSURES (DOUBLE)
N-14
MINIMUM PAVEMENT SECTIONS
N-15
RURAL ROADWAY SECTIONS
N-27
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""I5 VARIES
%10(,'NKK i
RM VARIES; 50' MIN
u• 1z
z
w
Q
a
O
0 az
VARIES s
SA.EwALK
2' ASPHAI T MINIMUM (FDOT TYPE SP-9 5,
5 CONC SIDEWALK
(4- T HICK, 0' AT ORIVFA'AYS) 24' STANDARD 8• MMI. LIMEROCK BASE COURSE
MAX CROSS SLOPE 0 02 CURB & GUTTER (90`w MAX. DENSITY PER AASHTO T-1801
(FIGURE N-6)
17 MIN. STABILIZED SUB43ASE
(MIN F.B V 75 PSI OR LBR 40)
NOTE
IF ASPHALT WILL BE PLACED IN 2 LIFTS.
EACH LIFT SHALL BE A MINIMUM OF t INCH
OF SP-9,S.
CITY OF STANDARD CURB & GUTTER
SANFiORD ROADWAY SECTION FIGURE
PLANNING & DEVELOPMENT Nei
fsr. 1* SERVICES DEPARTMENT Date: 6/12/2014 D�Vm By. M JONES
N-28
xx/xx/xx P I[LIm to
Ord. No. xx-xxxx Rabic of C ontcnt
FOR. CITY OF R D
S
PLANNING & DEVELOPMENT
"Sr. is SERVICES DEPARTMENT
TYPICAL SWALE SECTION
FOR EXISTING ROADWAYS
Date: 1r25i2012 Drawn By M JONES
FIGURE
N•2
N-29
xx/xx/xx Retum to
Ord. No. xx-xxxx Tablc of Contents
TRANSITION
18"
J'
6IUST FOLLOW
4LIGNMENT OF
fHE STREET
I-RANSITION
50' RADIUS MIN. FOR MAJOR DRIVEWAYS.
35' RADIUS MIN. FOR MINOR AND INTERMEDIATE DRIVEWAYS.
*"`°"°�� CITY OF STANDARD CONCRETE
SANFORD VALLEY GUTTER FIGURE
PLANNING & DEVELOPMENT N-3
SERVICES DEPARTMENT Date: 3/2312015 Drawn By: M. CASH I
N-30
xx/xx/xx Retum to
Ord. No. xx-xxxx Table of Contents
SWALE
ClIRB
I Al
VARIES
4
C�Kb
c 4
t ,
` EXIST C'JRd
A
A•-:AFOI IC VARAi.OI IC V
PARABOLICt5L 7'A{PL
SEE SECTION 9-8 MIN
SECTION A -A
SWALE s--I SEE EDGE TAPER
DETAIL
SIDEWALK M
PLAN VIEW
C R9 AND
L a
z
x
x
L
Z
GIITT�I<
PAVING MATERIAL
r5 u5
f
SP•9.5
t` �All
n
EXIST:NG A.C. OR
P.C.C. PAVEMENT
1
GRINI3 t' UhFI'
x 15' WADE FOR
t .6
_
V w
EXTRA DEPTH
- -
&.0" PARABOLIC
---
i
AT FLK:E
C
EDGE TAPER DETAIL
PARABOLIC
nrr.T,�x� n n
CROWN
CONSTRUCTION NOTES:
1. GRIND FOR EXTRA DEPTH AT EDGES AS
SHOWN.
2. APPLY BITUMINOUS TACK COAT OVER
AIR -BLOWN CLEANED AND SWEPT ASPHALT
CONCRETE.
3. ASPHALT SHALL BE ROLLED FOR COMPACTION
PER SPECIFICATIONS.
4. FINISH EDGES BY APPLYING TACK COAT AND
SAND SWEEPING. TACK COAT SHALL CONFORM
TO FOOT SPECIFICATIONS.
5 APPROPRIA f E PAVEMENT MARKING IS
REQUIRED AND MUST BE APPROVED BY THE
Cl I Y ENGINEER.
APPLICATION NOTES:
(APPROVED FOR USE WHEN THE
CONDITIONS BELOW EXIST.)
1. LOCATIONS PER APPROVED PLAN.
2. NEIGHBORHOOD ROUTES AND LOCAL
STREETS ONLY.
3. POSTED SPEED 25 MPH.
4. TANGENT SECTIONS OR CURVES WITH
300 FT. RADIUS OR LARGER.
5. NO MORE THAN 2 TRAVEL LANES.
6. NOT AN EXISTING OR PLANNED
TRANSIT ROUTE.
7. NOT A PRIMARY EMERGENCY VEHICLE
ROUTE.
* `°`O� CITY OF ASPHALTIC CONCRETE
S°
' ANFORD SPEED HUMP FIGURE
PLANNING & DEVELOPMENT S N-4A
Fsr. le' SERVICES DEPARTMENT Date: Dawn By I
1124+2012 Al JOVES
N-31
xx/xx/xx Return to
Ord. No. xx-xxxx fable of Contents
SIDEYVALK
SWALE
---- 27-0- ------
CURD
CURB OR
CI.RH AND
GUT—E:" -PAVING MA'ERIAL.
At
2"__1 S171-9 5
r18+ APERi
1
WIDTH107H
A---
1 E%IS'INCi A(. C1k
--
VAR £S
—
---
q P G.C. PAVEMENT
+
EDGE TAPER DETAIL
Ctik6
,J SF6 tOGL IA+I,K
S'NALE
DETAIL
SIDEWALK
Ir <
r
PLAN -VIEW
22 o
EXIST_ CURB I
0ARAHOIIC ^LAI I ✓ARAHCI IC rJ'
II II ( 1
PARABOLIC �J15' L. 1 ' VIN
SEE SECTION B-B MIN 3
3 X z Q
SQe i
z
0
GRINDWI1DE'OEEP
x I,'
EXTRA DEPTH
B-C" PARABOLC
AT FOGS
G
PARABOLIC
CROWN
Ql:r'TInKI R_R
CONSTRUCTION NOES:
GRIND FOR EXTRA DEPT'i AT EDGES AS SHOWN.
2 APPLY BITUVI14OUS TACK COAT OVER AIR -BLOWN
CLFANFD ANO SWEPT ASPHALT CONCRETE
3 ASPHALT SHALL BL ROLLLD F OR COMPACTION PER
SPECIFICATIONS.
4 FINISH EDGES BY APPLY NG TACK COAT AND SAND
SWEEPING. TACK COAT SHALL CONFORM TO FDOT
S D=CIF ICA TIONS.
5. APPROPRIATE PAVEMENT MARKING IS REQUIRED AND
MUST BE APPROVED BY THE CITY ENGINEER.
QG(`TIOKI A_A
APPLICATION NOTES
(APPROVED FOR JSE WHEN THE CONDITIONS
BELOW EXIST)
1 LOCATIONS PER APPROVED PLAN.
2. POSTLO SPEED 25 MPH.
3. TANGENT SECTIONS OR CURVES WITH 300 FT.
RADIUS OR 1 ARGFR,
4 GRADE LESS THAN 8%.
S. NO MORE THAN 2 TRAVEL LANES
CITY OF ASPHALTIC CONCRETE
F ANFORD SPEED TABLE
SFIGURE
' N-4B
SERVICES DEPARTMENT ^125i2012 M JONFS
V
PLANNING &DEVELOPMENT 'Date: Drawn By i
N-32
xx/xx/xx Retum to
Ord. No. xx-xxxx Table of Contents
300'
I
;4
VARIES
COBRA HEAD LIGHTING
ALUMINUM ARM
Q A,VG;
JOCONCRETE POLE
(S.0 )
z4'o•
VARIES AS REQUIRFO BY
GREEN BOOK STANDARDS
(MIN DISTANCE IS 4')
PULL 8OX DETAIL
24
ASPHALT PAVEMENT
... - LIMEROCK _J CONCRETE CURBING
SUBBASE —
407E
EAD OF CONDUITS
;HALL BE SEALED TO
IREVENT FLOW OF
NATER 7�RGl16H
:ONDUI T
J OF PEA ROCK OR
CRUSHED STONE FOR
DRAINAGE
1. STREET LIGHTS SHALL BE LOCATED AT EACH INTERSECTION. STREET LIGHT SPACING SHALL NOT
EXCEED 300'. LIGHTS SHALL BE LOCATED ACCORDING TO ACCEPTABLE ENGINEERING PRACTICES.
2. ALL NEW SERVICES SHALL BE UNDERGROUND.
3. PROVIDE PULL BOX AT EACH POLE.
4. WIRE CONDUIT SHALL BE INTERNAL.
5. EACH POLE SHALL BE INDIVIDUALLY FUSED AND GROUNDED.
6. POLE LOCTION AND ARM LENGTH ARE TO BE COORDINATED WITH PAVEMENT CROSS-SECTION.
7. DIMENSIONS SHOWN ARE MINIMUMS.
8. LAMP SHALL BE HIG PRESSURE SODIUM, 100 WATT FOR RESIDENTIAL AND NON-RESIDENTIAL AREAS.
9. REFER TO SCHEDULE N, SECTION 3.2 (B) FOR ADDITIONAL LIGHTING SPECIFICATIONS.
J45r�Fo4t°R`' CITY OF
V � ;SWORD
F
PLANNING & DEVELOPMENT
Fsr. 181 SERVICES DEPARTMENT
STREETLIGHT
STANDARD
Date: Drawn By.
1/24/2012 M. JONES
FIGURE
N-5
N-33
xx/xx/xx Return to
Ord. No. xx-xxxx Table of Contents
12'
12•
6• I ' 0 1$• � SAME SLOPE AS ADJACENT PAVEMENT
ASPHALT PAVEMENT
NOTE:
WHEN USED ON HIGH SIDE OF ROADWAYS, THE CROSS SLOPE OF THE
GUTTER SHALL MATCH THE CROSS SLOPE OF THE ADJACENT
PAVEMENT AND THE THICKNESS OF THE LIP SHALL BE 6", UNLESS
OTHERWISE SHOWN ON PLANS.
STANDARD CURB AND GUTTER (F.D.OT. TYPE F)
24'
I
MIAMI CURBING
*'00AIA "e CITY OF ALTERNATE CURB
t; s SWORD SECTIONS FIGURE
PLANNING & DEVELOPMENT Date: D
N-6
FS'r. 1t� SERVICES DEPARTMENT 6I12/2014 ravvrl By. M JONES
N-34
xx/xx/xx Return to
Ord. No. xx-xxxx Table of Contents
Z Z
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o` {o
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SkNFORD DETAIL FIN 7
PLANNING & DEVELOPMENT Date. Drawn By I
Fs'r. te' SERVICES DEPARTMENT
N-3 5
xx/xx/xx Return to
Ord. No. xx-xxxx Table of Contents
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O O ON ONm I� M ��I
`5*µk0gn A� CITY OF AUXILIARY LANE(S)
Sk�ORD DETAIL FIGURE
PLANNING & DEVELOPMENT N-8
"sr. Ia SERVICES DEPARTMENT Date: Drawn By
N-36
Xxhcx/xx Return t,
Ord. No. xx-xxxx fable of Contents
(APPLIES TO BOTH SIDES, IF APPROPRIATE)
n
• I PROPERTY LINE
..
• , SEE TABLE 1/2" EXPANSION JOINT
RADIAL APRON 4
5'RMIN.
•' i' CURB TRANSITION: i• n
12" '�' .. ••�.
3 REMOVE AND REPLACE CURBING. DO NOT CURB TRANSITION
L a BREAK OFF BACK OF CURB
— 5' —
PLAN
BACK OF SIDEWALK SEE TABLE I FRONT OF SIDEWALK
I— 3' GUTTER GRADE • ---}- 3'
CI C1/A TfllA!
PROPERTY 2' _
LINE
SIDEWALK I DRIVEWAY APRON
DROP
CURB
NOTES.
SLOPE NOT TO
112" \
EXCEED 0.02
6" THICK, 3000 PSI CONCRETE
EXPANSION
1. WHERE VERTICAL CURBING
FROM CURB TO PROPERTY
JOINT
EXISTS, THE SAME PROCEDURES
LINE
SHALL APPLY.
SECTION A -A
2. EXISTING SIDEWALKS, IF NOT 6"
THICK SHALL BE REMOVED &
REPLACED WITH 6" THICK 3000PSI
- -- - -- - - - -. --- --- -.--- - .- -
CONCRETE TO MATCH
DRIVEWAY WIDTH, FEET
DRIVEWAY.
RESIDENTIAL
NON-RESIDENTIAL NON-RESIDENTIAL
t-WAY 2-WAY
AWN. 9
16 24
MAX. is
20 40
a°F(IRp F'
CITY OF
DRIVEWAY DETAIL
1� 7
A I40RD
WITH C_U___R__B
& GUTTERFIGURE
W_:
PLANNING &DEVELOPMENTN-9
SERVICES DEPARTMENT
Date: Drawn By
1l24/2012
M „ONES
N-3 7
xxlvuxx Retum to
Ord. No. xx-xxxx Table of Contents
PROPERTY
LINE
I
112- EXPANSION JOINT
• • ' SID�}NALK � • � f
• 1'- SURFACE q 4,
• FLOW
BOTTOM OF , ' _4 -
SWALE '' ti _ •1
\ • ••0.555 MIN.
y
-�- 5' MIN.
(APPLIES TO BOTH SIDES,
IF APPROPRIATE)
1 PROPERTY
LINE
HAUTAL APRON •' • t '
OPTIONAL 5' R MIN. fiF�'T•A$tB FOR •1f
j MIN. AMAX WIDTH - •. I, \
�� �• I�•
6- FLUSH CURB ! • • 'Z I •'
12
- 5'
PLAN
EDGE OF
D PAVEMENT
W
J
1 H
VARIES VARIES
uj I- 5
C Z MAX 0.02
a J SLOPE 6"
DRIVE
GRADE
SIDEWALK
SWALE
GRADE
SECTION A -A
D
m
N
D
A
N
EDGE OF PAVEMENT
6" X 12" FLUSH CURB
(IF EXISTING)
NOTES-
1. DRIVEWAY SHALL BE 6- THICK, 3,000 PSI CONCRETE FROM EDGE OF PAVEMENT TO PROPERTY LINE.
2. EXISTING SIDEWALKS, IF NOT 6•• THICK SHALL BE REMOVED & REPLACED WITH 6" THICK 3000PSI CONCRETE TO
MATCH DRIVEWAY.
3. IF PAVEMENT HAS A FLUSH CONCRETE CURB, A 112" EXPANSION JOINT SHALL BE REQUIRED BETWEEN CURBING AND
APRON.
YON E, CITY OF DRIVEWAY DETAIL
' ° SANFORID WITH SWALE FIGURE
PLANNING & DEVELOPMENT - - — — --- -
Fsr. I•a SERVICES DEPARTMENT Date: Dawn By.
1;18i2012 M. JONES
N-3 8
xx/xx/xx Retum to
Ord. No. xx-xxxx Table of Contents
P. 1' 4 4" ► 2" .
,/.•nano, -*3'► .3'► 1• ► .
4 112" , Border 100
0,.G
I b!;,o
1
nAve
—.
Contact the City
. 5" ►
?'ad_ Dimension Varies Depending on Size of Legend
9" STREET IDENTIFICATION SIGN
1'
1
3'
(for City Streets > 25MPH)
Border 3" F3' A 1'A k
1.
� 4 "�, ,' Borde• A 0 O 3"
�
so
9ry i n,,,
1
Ave —►
. 5" ►
Blade Dimension Varies Depending on Size of Legend
9" STREET IDENTIFICATION SIGN
(for Private Streets > 25MPH)
►t'r 4' ► 2" /4" Border 14 I _3'+ . 3' ►
• T3;8" Borde
6" I SOrlLn:2'.-IQIIIIIIIIIIIII
�-- - Blade Dimens on Varies Depending on Size of egend-- -
6" STREET IDENTIFICATION SIG
. VC
2''
Pubhc Works
Department for Logo (for City Streets < 25MPH)
information 1
'/.' Border �, �3"+ . 3" ►
� 114"
6ii i 4" o 3/8" Border 100 2^.
1 L n • 1;4"
.
LLS, oepartrnent Blade Dimension Vanes Depending on Size of Legend ►
of Transportation 6" STREET IDENTIFICATION SIGN
Federal Highway (for Private Streets < 25MPH)
Administration
FHWA, MUTCD 2009 Edition Chapter 2D. Guide Signs —Conventional Roads
Scale as shown
I FIGURE
o�*�rnAi�R`' CITY OF
SOR
TYPICAL STREET
N-11
IDENTIFICATION
ENTIFICATION SIGN
Drawn By:
PLANNING & DEVELOPMENT
Date:
202011
Apr: B. Iftikar
SERVICES DEPARTMENT
REV 12f7i2017
N-39
xx/xx/xx Relurn to
Ord. No. xx-xxxx fable ofContent.
12'-0';INSIDE DMENSION!
4' HIGH 6' DIA0.+ETEH
4' 0" {TYR) GALVANIZED STEEL PIPE
BOU.ARD I rYF'.1
A a
Z THE ENCLOSURE SHAG BE G N.STRUCTED
t� • Or LONG LASTING DURABLE, LOW
Z SOLID MAINTENANCE AND OPAQUE VIATE'tIALS
u d
2
WASTE
1 CONTAINER
1 4
4 d
L /
a � , 4' DIA0.!ETER GALVANIZEC
CONCrE-E 3LA6 d HINGE POST (V.IN )
A /.1r nt 9+BAR!%12'0CFW '•
l ` .d
d •
o '0' CLEAR G{ TE OCENING IVIN.;
• W. d 4
/a A .11
APPROACH SI AFS
10 x 12 SINGLE ENCLOSURE DESIGN PAD
LOCKABLE DOUBLE HUNG GATES
WJ SCRFFNING MATFRIAI. AND
FOOT ROI TS
4
r
6
2
LL: I
tll
I
-:- FIN;SHFO PAVFMFNT
GRAOF
10 x 12 SINGLE ENCLOSURE ELEVATION
NOTES'
! SOLID WASTE CONTAINERS SHALU, BE LOCATED A A+:N;MUM OF 6 FEET FROM ANY STRUCT::RE OR BELOW ANY
OBSTRUCTING WIRES OR OTHER OBSTRUCTIONS
2 A MINIMUM OF 50 FEET CLEAR BACKUP SPACE FROM THE FRONT OF THE ENCLOSURE IS REO!ARED FOR SERVICING
PARKING AND LANDSCAPED AREAS MAY NOT BE USED FOR THIS PURPOSE
3 PAO TO BE CONSTRUCTED OF F! aHFR 30M PSI, 6' CONCRFTF W16:6 10A0 W.W M.. OR a• CONCRETE NTS AT '2' O C
APPROACH PAD TO BE OF SAME COMPOSITION.
4 THE ENCLOSURE SHALL BE 6 FEET HIGH OR 6 ''NCHES HIGHER THAN TeiE CONTAINER HEIGHT. WHICHEVER 15
GRtATER. WITH OFAQUt GARS OR DURABLE SCHI, t NING.
5. BACKING INTO RIGHTS-OF.iV'AY TO SERVICE CONTAINERS SHALL NOT BE PERMITTEC.
4*�FrI��A� CITY OF MINIMUM DESIGN
SWORD ELEMENTS
ENCLOSURE FIGURE
PLANNING & DEVELOPMENT N12
Fsr. ro� SERVICES DEPARTMENT Date: Drawn 8y
2-8-2012 M. JONES
N-40
xx/xx/xx Relum to
Ord. No. xx-xxxx Table of Contents
72 -0' WNSIDt 0I1,16NSKIv1
v -
Z
n
Z
•
d•
RECYCLE
Li
a
;
REGULA
%q
SOLID WASTE
o
SOLID WASTE
A.
CONTAINER
CONTAINER
yj
a
a.
b
• •
C
•
• • 6- -H!GK
SLAB A •
CONCRETF
•.
•• q
• • ''rV' xJ REBAR
0 12-
O.CGE :h. fq
C
q , 1 •
J
• 20' CLEAR Gy-E\(JP=NING MIN.) q a
a i
• f • •'d.
. • • • ,, d• d • -
y
• APPROACH SLAEI, • :'. • c
G
z
W
W
N
10 x 12 DOUBLE ENCLOSURE DESIGN PAD
LOCKABLE DOUBLE HUNG GATES
WV SCREENING MATERIAL .AND
F0CT SOL TS
10 x 12 DOUBLE ENCLOSURE ELEVATION
-- a' HIGH 6" DIAMETER
GX VANIZE:D STffl PIPE
HOI LARD j IYP.1
THE ENCLOSURE SHALL. SF
CONST, MUCTED OF LONG
LASTING. DURABLE t.OW
MAINTENANCE. AND
CPAOUt MArr RIA3.S.
f•' DIAMETER GALVANIZED
-INGE POST 0611N 1
GRAUF OF PAVF.MFNI
NOTES
I SOLID WASTE CONTAINERS SHALL. BE LOCATED A MINIMJM OF 6 FEET FRO41 ANY S_,RU('70RE OR BELOW ANY
OBSTRUCTINGWIRES OR OTHER OBSTRUCTIONS.
7. A MINIMUM OF 50 Fr&Ft CLEAR RACKvl' SPAC= PRCNI T-F FRONT OF THE =NCI OSURF IS RFOUIRFD FOR SFNV:CNG
PARKING AND LANDSCAPED AREAS MAY NOT BE JEED =CR THIS PURPOSE
T, PAD TO BE CONSTRJCTEJ X, PW OF EITHER 3O5; 6' CONCRETE. 6xt;. 1000 W W M , OR d" CONNGiREETEC . -13S AT 12' O.
APPROACH PAD TO BE OF SAME COMPOSITION.
S THE ENCLOSURE SHALL BE 6 IEET HIGH OR 6 INCHES HIGHER THAN THE CONTAINER HEIGHT. WHICHEVER S
GRF Al FR WI rH OPAOUF GAPES OR DL.RAHL.F SCRFt: NLNG
5. BACKING INTO RIGHTS -Or YVAY TO SERVICE CON-AINERS SHALL NO- BE PERMITTED
FOq�j CITY OF MINIMUM DESIGN
*' •� ELEMENTS FOR SOLID
' 1 DT FIGURE
RW WASTE ENCLOSURE N13
PLANNING & DEVELOPMENT - --- - -
SERVICES DEPARTMENT Date: Drawn By
2-8-2012 M. JONES
N-41
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Ord. No. xx-xxxx fable of Contents
WITH CURB
FLEXIBLE PAVEMENT:
A. ASPHALT CONCRETE SURFACE COURSE:
MINIMUM 2' OF SP-9.5 OR SP-12.5 ASPHALT. IF THE ASPHALT
WILL BE PLACED IN TWO LIFTS. EACH LIFT SHALL CONSIST
OF A MIN. 1" OF SP9.5 ASPHALT THICKNESSES IN THIS
SECTION ARE MIN. COMPACTED THICKNESSES, & NO
DEVIATION OR TOLERANCE IS PERMITTED.
B. BASE:
MIN. 8" LIMEROCK, LBR 100 & 98% OF AASHTO T-180
(MODIFIED PROCTOR MAX. DENSITY) OR
MIN. 8" CRUSHED CONCRETE, LBR 100 & 98% OF AASHTO
T-180 (MODIFIED PROCTOR MAX. DENSITY) OR
MIN. 8" MODIFIED SOIL CEMENT, 300 PSI AT 7DAYS. & MIN.
98% OF AASHTO D-558 MAX. DRY DENSITY)
C. STABILIZED SUBGRADE
MIN. 12" STABILIZED SUBGRADE. CONSISTING OF SUITABLE
NATIVE OR IMPORTED SOIL MIXED WITH LIMEROCK, SHELL,
CLAY. OR CRUSHED CONCRETE, MIN. LBR 40 OR FBV 75PSI.
rot
�, CITY OF
SANFORD
PLANNING & DEVELOPMENT is
Fsr. la" SERVICES DEPARTMENT
NO CURB
CURB & GUTTER
RIGID PAVEMENT:
A. PORTLAND CEMENT CONCRETE PAVEMENT:
MINIMUM 6" THICK, 3000 PSI CONCRETE.
B. BASE:
TYPICALLY NOT USED
C. STABILIZED SUBGRADE:
MIN. 12' STABILIZED SUBGRADE, CONSISTING OF SUITABLE
NATIVE OR IMPORTED SOIL MIXED WITH LIMEROCK, SHELL,
CLAY, OR CRUSHED CONCRETE. MIN. LBR 40 OR FBV 75PSI.
MINIMUN PAVEMENT
SECTIONS
1125i2012 Drawn By \1 JONES
FIGURE
N-14
N-42
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Ord. No. xx-xxxx Table of Contents
RURAL HALF -SECTION
`y*NFORD F� CITY OF RURAL ROADWAY
✓ S ORD SECTION FIGURE
PLANNING & DEVELOPMENT N-9 5
SERVICES DEPARTMENT Date. 1,3112012 Drawl By M .!ONES
N-43
xx/xx/xx Rctum to
Ord. No. xx-xxxx l'-,ible ufContents
SCHEDULE O
DRAINAGE, EASEMENTS AND SITE DEVELOPMENT
REGULATIONS
SECTION 1.0 PURPOSE, INTENT, LAWFULNESS, AND BEST PRACTICES .................................... I
A. Purpose and Intent.................................................................................................................................... 1
B. Lawfulness.................................................................................................................................................1
C. Best Practices............................................................................................................................................. 1
SECTION 2.0 GENERAL CRITERIA/PRINCIPLES OF APPROVALS..................................................1
A. Maintain Predevelopment Conditions..................................................................................................... 1
B. Provide Necessary Facilities..................................................................................................................... 1
C. Nonstructural Approach Preferred........................................................................................................ 1
D. Stand -Alone Systems................................................................................................................................ 2
E. Upstream Runoff....................................................................................................................................... 2
F. Maintain Existing Surface Drainage....................................................................................................... 2
G. Steep Ditches Prohibited.......................................................................................................................... 2
H. Natural Drainageways and Watercourses.............................................................................................. 2
I. Rates and Volumes of Runoff.................................................................................................................. 2
J. Prevent Adverse Impact........................................................................................................................... 2
K. Maximize Recharge.................................................................................................................................. 2
L. Overland Flow........................................................................................................................................... 2
M. Drainage Easements, General.................................................................................................................. 2
N. Off -site Easements.................................................................................................................................... 2
O. Easements on Plans................................................................................................................................... 3
P. Off-line....................................................................................................................................................... 3
Q. On-line........................................................................................................................................................ 3
S. Effect and Limitations as to Approvals.................................................................................................. 3
T. CCTV Requirements................................................................................................................................ 3
1. Requirment............................................................................................................................................3
2. Responsibility.......................................................................................................................................3
3. Submission............................................................................................................................................3
4. Acceptance Criteria............................................................................................................................... 3
SECTION 3.0 SPECIFIC DESIGN CRITERIA AND STANDARDS......................................................... 3
A. Design Standards...................................................................................................................................... 3
1. Facility Type by Storm Event............................................................................................................... 3
2. Increased Size When Necessary ........................................................................................................... 4
3. Design Based on Soils.......................................................................................................................... 4
4. Drainage Easements.............................................................................................................................. 4
B. Retention Facilities................................................................................................................................... 5
1. Dedicated Retention Pond Plat............................................................................................................. 5
2. Redeveloped Sites................................................................................................................................. 5
3. Post -Storm Capacity............................................................................................................................. 5
4. Retention of First Half -Inch Runoff..................................................................................................... 6
5. Retention Volume................................................................................................................................. 6
6. Peak Discharge..................................................................................................................................... 6
7. Discharge to Outstanding Florida Waters............................................................................................. 6
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Ord. No. xx-xxxx
8.
Construction Requirements................................................................................................................... 6
C. Wet Detention Stormwater Management Systems................................................................................ 8
1.
Dedicated Detention Pond Plat.............................................................................................................
8
2.
Redeveloped Sites.................................................................................................................................
8
3.
Retention of Runoff..............................................................................................................................
8
4.
Outfall Criteria......................................................................................................................................
8
5.
Design Without Positive Outfall...........................................................................................................
8
6.
Detention with Filtration.......................................................................................................................
8
7.
Permanent Pool.....................................................................................................................................
9
8.
Littoral Zone......................................................................................................................................... 9
9.
Pool Depth............................................................................................................................................ 9
10. Flow Paths............................................................................................................................................. 9
11.
Bleed Down Devices............................................................................................................................ 9
12. Location of Bleed Down Devices.......................................................................................................
10
13.
Access.................................................................................................................................................
10
14. Discharge to Outstanding Florida Waters...........................................................................................
10
15.
Additional Construction Requirements...............................................................................................
10
D. Detention With Filtration Systems........................................................................................................
11
1.
Retention of Runoff............................................................................................................................
11
2.
Post -Storm Capacity...........................................................................................................................
11
3.
Filter Material.....................................................................................................................................
11
4.
Maintenance and Inspection...............................................................................................................
12
5.
Filter Stabilization...............................................................................................................................
12
6.
Safety Factor.......................................................................................................................................
12
7.
Invert Elevation of the Perforated Pipe...............................................................................................
12
8.
Discharge to Outstanding Florida Waters...........................................................................................
12
9.
Additional Construction Requirements...............................................................................................
12
E. Underground Exfiltration Trench Systems..........................................................................................
13
1.
Retention of Runoff............................................................................................................................
13
2.
Post -Storm Capacity...........................................................................................................................
14
3.
Safety Factor.......................................................................................................................................
14
4.
Pipe Standards.....................................................................................................................................
14
5.
Sediment Sumps.................................................................................................................................
14
6.
Maintenance and Inspection...............................................................................................................
14
7.
Invert Elevation of Trench..................................................................................................................
14
8.
Capacity to Retain Treatment Volume...............................................................................................
14
9.
Access Manholes................................................................................................................................
14
10. Discharge to Outstanding Florida Waters...........................................................................................
14
F. Underdrain Stormwater Management Systems...................................................................................
15
1.
Runoff.................................................................................................................................................15
2.
Post -Storm Capacity...........................................................................................................................
15
3.
Safety Factor.......................................................................................................................................
15
4.
Groundwater Drawdown Criteria.......................................................................................................
15
5.
Pond Underdrain Criteria....................................................................................................................
15
6.
Underdrain Outlet...............................................................................................................................
15
7.
Cleanouts............................................................................................................................................15
8.
Maintenance and Inspection Requirements........................................................................................
15
9.
Tree Clearance....................................................................................................................................
16
10.
Pond Underdrain Standards................................................................................................................
16
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Ord. No. xx-xxxx
11. Adjacent Property Protection.............................................................................................................. 16
12. Discharge to Outstanding Florida Waters........................................................................................... 16
13. Roadway Underdrains......................................................................................................................... 17
SECTION 4.0 ROADWAY DRAINAGE DESIGN..................................................................................... 17
A. All Roads.................................................................................................................................................. 17
1. Cross-Slope.........................................................................................................................................17
2. Minimum Groundwater and Highwater Clearances........................................................................... 17
B. Rural Sections......................................................................................................................................... 18
1. Post -Storm Capacity........................................................................................................................... 18
2. Runoff Percolation.............................................................................................................................. 18
3. Slope...................................................................................................................................................18
4. Discharge to Outstanding Florida Waters........................................................................................... 18
5. State Swale Criteria............................................................................................................................ 18
C. Urban Sections........................................................................................................................................ 18
1. Curb, Gutter and Grades..................................................................................................................... 18
2. Allowable Length of Gutter Flow....................................................................................................... 18
3. Inlet Interception Rates....................................................................................................................... 18
4. Low Point Inlets.................................................................................................................................. 18
5. Inlets.................................................................................................................................................... 18
6. Tolerance............................................................................................................................................19
SECTION 5.0 CLOSED STORM DRAINAGE SYSTEMS.......................................................................19
A. Storm Sewer Design Criteria................................................................................................................. 19
1. Allowable Velocities........................................................................................................................... 19
2. Energy Dissipation.............................................................................................................................. 19
3. Hydraulic Gradient............................................................................................................................. 19
4. Design Tailwater................................................................................................................................. 19
B. Culvert Design Criteria..........................................................................................................................19
1. Minimum Allowable Slope................................................................................................................. 19
2. Energy Dissipation.............................................................................................................................. 20
3. Allowable Headwater......................................................................................................................... 20
4. Design Tailwater................................................................................................................................. 20
C. Drainage Pipes and Structures.............................................................................................................. 20
1. Pipe Size............................................................................................................................................. 20
2. Length.................................................................................................................................................20
3. Structure Requirements....................................................................................................................... 20
4. Pipe Clearance.................................................................................................................................... 20
5. Public Roads....................................................................................................................................... 20
6. Conflict Manholes............................................................................................................................... 20
7. Storm Sewer Alignment...................................................................................................................... 21
8. Inlets, Manholes and Junction Boxes................................................................................................. 21
SECTION 6.0 OPEN STORM DRAINAGE SYSTEMS............................................................................ 21
A. Soils Conditions....................................................................................................................................... 21
B. Allowable Velocities................................................................................................................................ 21
C. Minimum Longitudinal Grade.............................................................................................................. 21
D. Design Tailwater..................................................................................................................................... 21
E. Channel Curvature................................................................................................................................. 22
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Ord. No. xx-xxxx
F. Fencing . .................................................................................................................................................... 22
G. Side Slopes............................................................................................................................................... 22
H. Bottom......................................................................................................................................................22
I. Maintenance Berm.................................................................................................................................. 22
J. Freeboard................................................................................................................................................22
K. Slope Protection...................................................................................................................................... 22
L. Channel Protection................................................................................................................................. 22
M. Utility Crossing....................................................................................................................................... 22
SECTION 7.0 DRAINAGE STRUCTURE MATERIAL SPECIFICATIONS ........................................ 23
A. Pipe Materials......................................................................................................................................... 23
B. Underdrains.............................................................................................................................................23
C. Exfiltration Pipe...................................................................................................................................... 23
D. Fine Aggregate........................................................................................................................................ 23
E. Coarse Aggregate.................................................................................................................................... 23
F. Filter -Fabric Envelope (Sock)................................................................................................................ 24
G. Filter Fabric............................................................................................................................................. 24
H. Rip-Rap....................................................................................................................................................24
SECTION 8.0 DRAINAGE CALCULATION AND COMPUTATION CRITERIA .............................. 24
SECTION 9.0 EASEMENTS - GENERAL.................................................................................................. 24
A. Review and Approval............................................................................................................................. 24
B. Subdivisions.............................................................................................................................................24
C. Off-Site..................................................................................................................................................... 25
SECTION 10.0 SITE PREPARATION, EXCAVATION, LAND CLEARING, DREDGING AND
FILLING................................................................................................................................. 25
A. Scaled Drawing....................................................................................................................................... 25
B. Protection of Adjacent Land.................................................................................................................. 25
C. Protection of Environmentally Sensitive Lands................................................................................... 25
D. Guarantee................................................................................................................................................25
SECTION 11.0 RESIDENTIAL LOT GRADING REQUIREMENTS...................................................... 25
A. Master Drainage Plan Lot Grading...................................................................................................... 25
1. Finished Floor FIevation. '�
B. Infill Lot Grading.................................................................................................................................... 26
1. Grading Plan....................................................................................................................................... 26
2. Finished Floor Fle%ation..................................................................................................................... 26
3. Side Yards........................................................................................................................................... 27
C. Grading Requirements Associated with Swimming Pool and/or Septic System Construction....... 27
D. Finished Floor Waivers.......................................................................................................................... 27
E. Certification.............................................................................................................................................27
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Ord. No. xx-xxxx
I SCHEDULE O
2 DRAINAGE, EASEMENTS AND SITE DEVELOPMENT
3 REGULATIONS
4
SECTION 1.0 PURPOSE. INTENT. LAWFULNESS, AND BEST PRACTICES
6 A. Purpose and Intent.
7 To establish herein all essential and necessary regulations. standards and information for the effective and
8 orderly development of property specifically in regard to drainage facilities and easements for drainage. This
9 schedule provides detailed regulations and technical specifications that are to be applied to any new or existing
0 development that will have an impact on water flows or discharge of water within. across. or maintained
1 within a property. This schedule is also for the regulation of any easement necessarypublic drainage
2 facility and the drainage of water to or from a public right-of-way.
3 B. Lawfulness.
4 Any deviation from the provisions of this Schedule, unless specifically stated herein or allowed b other
5 provisions of these LDRs or under the authority of the Administrative Official is prohibited and unlawful.
6 C. Best Practices.
7 All reviews and determinations of the provisions within this Schedule by the Administrative Official shall be
8 to implement the Purpose and Intent of this Schedule together with sound and generally accepted land use and
9 growth management planning practices and principles that aim to balance the social. physical. economic and
0 environmental needs of the Citv.
1 SECTION 2.0 GENERAL CRITERIA/PRINCIPLES OF APPROVALS
2 SECTION 1.0 QENEP A T GRITERI A /DD TNCIPT ES OF APPROVALS
4 afe. The following general criteria shall apply to all; provided however, that these regulations shall
5 not be construed or applied to conflict with the provisions of Section 166.033, Florida Statutes. When the term
6 "regulation" is used in this Schedule, it means all City codes, ordinances and regulations, and rules if rulemaking
7 authority has been granted, which address stormwater management.
8 A. Maintain Predevelopment Conditions.
9 Development (including, but not limited to alteration or modification of a site) shall be implemented in such
0 a manner as to preserve the pre -development direction, rate and flow characteristics of stormwater run-off.
1 With regard to sites with positive outfall, the post -development rate of runoff shall not be greater than the pre-
2 development condition. With regard to sites without positive outfall or in closed basins, the post -development
3 rate and volume of runoff shall not be greater than the pre -development condition. The term "development"
4 is used as intended in Section 163.3164 (14), Florida Statutes, which adopts the meaning set forth in s. Section
5 380.04, Florida Statutes, which is a comprehensive definition.
6 B. Provide Necessary Facilities.
7 All development shall provide for such water retention and settling structures and flow -attenuation devices as
8 may be necessary to ensure compliance with all City regulations.
9 C. Nonstructural Approach Preferred.
0 When practicable, the nonstructural approach shall be used to meet both surface water quantity and quality
1 regulations.
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Ord. No. xx-xxxx Table of Contents
2 D. Stand -Alone Systems.
3 The drainage system for each phase of a development shall comply with these regulations. Such systems shall
4 be functionally independent and not tied to future development. They may also provide for future (unbuilt)
5 phases of the development project.
6 E. Upstream Runoff.
7 Run-off from adjacent properties shall not be blocked by site development. The drainage system for each
8 development shall be designed to accommodate existing upstream runoff.
9 F. Maintain Existing Surface Drainage.
0 Site alteration shall not adversely affect existing surface water flow pattern. When consistent with sound and
1 generally accepted engineering practices and principles, drainage sub -basin boundaries shall be maintained.
2 G. Steep Ditches Prohibited.
3 Open drainageways with slopes of greater than three to one (3:1) are prohibited and unlawful.
4 H. Natural Drainageways and Watercourses.
5 Developments that contain an existing natural drainage way, watercourse, floodplain and/or adjacent
6 vegetation shall maintain and incorporate such natural features into the project design. The design shall ensure
7 that sediments will not enter such natural drainage.
8 I. Rates and Volumes of Runoff.
9 Rates and volumes of storm water runoff, whether discharged into natural or artificial watercourses, shall
0 meet existing water quality standards at the first downstream receiving water body for which such standards
1 have been established.
2 J. Prevent Adverse Impact.
3 Site development shall not cause siltation of wetlands, pollution of downstream wetlands or reduce the natural
4 retention or filtering capabilities of wetlands. Notwithstanding the foregoing provision, the City shall not be
5 responsible for any adverse downstream impacts that are actionable under civil liability principles that may
6 result from the development or use of upstream properties.
7 K. Maximize Recharge.
8 Developments shall be designed to maximize the amount of natural rainfall which is infiltrated into the soil
9 and to minimize direct overland runoff into adjoining streets and watercourses. Storm water runoff from roofs
0 and other impervious surfaces shall be diverted into swales or terraces on the lot when practicable.
1 L. Overland Flow.
2 When consistent with sound and generally accepted engineering practices and principles, runoff from
3 impervious areas shall be diverted so as to flow over vegetated areas prior to flowing into gutters, storm drains
4 and retention areas. A minimum slope of 1.5% needs to be maintained to drain runoff across all non -paved
5 areas.
6 M. Drainage Easements, General.
7 Where a rational nexus exists and a rough proportionality test supports the requirement, easements for
8 drainage facilities, shall be granted to the City and shall be in a form that is subject to approval by the City
9 Attorney.
0 N. Off -site Easements.
1 Off -site easements necessary to the function of the drainage system shall be provided as may be needed with
2 title to properties and drainage rights being demonstrated to exist consistent with controlling law.
O-2
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3 O.
Easements on Plans.
4
Easements for drainage facilities must be shown on required plans and approved in the applicable manner set
5
forth in this Schedule. Recording information shall be inserted on the plans and a title search may be required
6
by the City when such is deemed necessary for an adequate review of the plans which requirement may extend
7
to abutting and downstream properties.
8 P.
Off-line.
9
The storage of a specified volume of the initial stormwater in such a manner such that subsequent runoff in
0
excess of the specified volume does not flow into the area storing the initial stormwater is required.
1 Q.
On-line.
2
The plans shall demonstrate that the storage of a specified volume of the initial stormwater in such a manner
3
such that subsequent runoff in excess of the specified volume does flow into the area storing the initial
4
stormwater.
5 S.
Effect and Limitations as to Approvals.
6
Nothing in this Schedule nor any action taken or not taken by the City relative to any action taken or approval
7
granted under the provisions of this Schedule shall be construed, deemed or result in any liability upon the
8
City and the City's actions are administrative in nature and the applicant and her, his or its consultants shall
9
bear sole and plenary responsibility for any and all damages of any type or nature, under every legal theory
0
whatsoever, resulting from the use of system approved under this Schedule, to include, but not in any way
1
limited to, the flooding of the property being developed, abutting and other properties, however remote, and
2
upstream and downstream properties.
3 T.
CCTV Requirements.
4
1. Requirement.
5
All drainage infrastructure intended for dedication to the City for maintenance shall undergo a CCTV
6
inspection.
7
2. Responsibility.
8
The developer is responsible for generating the CCTV inspection report.
9
3. Submission.
0
The CCTV inspection report must be submitted to the City for review prior to obtaining a Certificate of
1
Completion.
2
4. Acceptance Criteria.
3
The City will determine the acceptance of the drainage infrastructure based on the findings of the CCTV
4
inspection report.
5 SECTION 3.0 SPECIFIC DESIGN CRITERIA AND STANDARDS
6 SECTION 2.0 SPECIFIC DESIGN CjTyrEPTA A14P STANDADTl�'
7 A. Design Standards.
8 1. Facility Type by Storm Event.
9 a. Drainage for the following facility types shall be designed according to the corresponding storm
0 events:
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Facility Type
Storm Event
Retention/detention for parcels with positive outfall:
25-year, 24-hour
Retention for parcels without positive outfall:
25-year, 96-hour
Closed drainage for urban streets with piped drainage:
10-year, 24-hour
Open drainage for rural streets with swales:
10-year, 24-hour
Canals, ditches, culverts and other off -the -premise facilities:
25-year, 24-hour
Bridges and major highway crossings:
100-year, 24-hour
2
3 b. The design frequency may be increased if deemed necessary by the Administrative Official based
4 upon sound and generally accepted engineering practices and principles.
5 2. Increased Size When Necessary.
6 The Administrative Official shall have the authority to increase the minimum required width of drainage
7 easements, based upon sound and generally accepted engineering practices and principles, in order to
8 provide for proper access, maintenance or functioning of the drainage system.
9 3. Design Based on Soils.
0 The design of stormwater management facilities shall be based upon soil conditions as set forth in the Soil
1 Survey of Seminole County, Florida and any supplements thereof as prepared by the U.S. Department of
2 Agriculture, Natural Resources Conservation Services. In areas where the soils are poorly drained or
3 experience a high groundwater table, such facilities shall be designed for wet detention or detention with
4 filtration. In areas where the soils are well drained, such facilities shall be designed for retention,
5 retention/detention and/or exfiltration.
6 4. Drainage Easements.
7 When required for drainage of the area to be subdivided or otherwise developed, drainage easements shall
8 be provided in the manner prescribed in this Schedule and shall be of such dimensions as are necessary to
9 permit proper construction and maintenance of drainage facilities based on the drainage system of the
0 area. The relationship between the type of drainage system and the minimum width of the easement shall
1 be as follows subject to a rational nexus and rough proportionality analysis:
2
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DRAINAGE SYSTEM
MINIMUM EASEMENT WIDTH 0)
Closed Drainage Systems
Any Depth
30`
Open Drainage Systems
Depth = 1'
30'
Depth = 2'
35'
Depth = 3'
55'
Depth = 4'
60'
Depth = 5'
65'
Depth = 6'
70'
Depth = 7'
75'
Depth = 8'
90,
Depth = 9'
95'
Depth = 10'
100,
Notes:
(1) Easement width may be increased dependent on size, location and depth of pipe. Easement width
shall be sufficient to contain the pipe and all excavation necessary to access/replace the pipe without
need for special trench shoring. Easements shall be sized such that an adequate area is available for
maintenance purposes.
3
4 SECTION 2.1 DL'TTT_--1 T T A CI TTIE
5 B. Retention Facilities.
6 Retention Systems. Retention systems are designed to store a specific volume and regulate discharge of
7 stormwater runoff into surface waters of the state by on -site impoundment.
8 Retention systems shall comply with the following:
9 1. Dedicated Retention Pond Plat.
0 Retention ponds, and access ways to ponds, within platted subdivisions shall not be dedicated or conveyed
1 in the form of an easement, but, rather shall be platted as a separate tract of land dedicated to the entity
responsible for maintenance; provided, however, that, a note shall be placed on the plat that the entity to
which the dedication relates may, at any time, require the fee simple owner to convey the tract to the
4 entity.
2. Redeveloped Sites.
6 Alterations, expansions and activities which do not cause an increase or net decrease in impervious area
7 shall provide, as a minimum, for one of the following:
8 a. Maintain or relocate existing stormwater facilities without loss of capacity that meet or exceed the
9 requirements in subparagraphs (2.) and (3.)
O b. Off-line retention of the first on 1, 2" of runoff or (1-1 4" of runoff from the
1 impervious area, whichever is greater, or
c. On-line retention of an additional one (1 /2" of runoff over that volume specified in subparagraph
B.2.a.
4 3. Post -Storm Capacity.
Retention facilities shall be designed to ensure dry bottom within 72 hours after the design storm event.
6 Dry bottom shall mean the absence of standing water. The storage volume must be provided by a decrease
7 of stored water caused only by percolation through soil, evaporation or evapotranspiration.
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Ord. No. xx-xxxx Fable of ontents
8 4. Retention of First Half -Inch Runoff.
9 Retention facilities shall provide for either of the following:
0 a. Off-line retention of the first 1/2" of runoff or one and-euequai4er- 1-1/4" of runoff from the impervious
1 area, whichever is greater, or
2 b. On-line retention of an additional 1/2" of runoff over that volume specified in subparagraph 13.2.a.
3 5. Retention Volume.
4 Retention ponds shall be designed to retain the difference in runoff volume between pre- and post-
5 development or the pollution abatement volume, whichever is greater. In Class A or B soil types, the
6 volume of stormwater runoff which will be recovered by percolation during the storm may be considered,
7 if the analysis includes soil properties based on specific soil borings performed in the proposed pond
8 location.
9 6. Peak Discharge.
0 Retention ponds shall include an outfall structure, except where determined unnecessary by the
1 Administrative Official, based upon sound and generally accepted engineering practices and principles,
2 to regulate the post -development discharge rate to at or below the pre -development discharge rate. The
3 outfall shall preserve the pre -development direction, rate and flow characteristics.
4 7. Discharge to Outstanding Florida Waters.
5 Retention systems which direct discharge to Class I, Class II, or Outstanding Florida Waters shall provide
6 either of the following:
7 a. At least an additional 50% of the applicable treatment volume specified in subparagraph 13.4.a. Off-
8 line retention must be provided for at least the first 1/2" of runoff or 1-1/4" of runoff from the
9 impervious area, whichever is greater, of the total amount of runoff required to be treated; or
0 b. Online retention of the runoff from the three-year, one -hour storm or an additional 50% of the
1 treatment volume specified in subparagraph B.4.b, above, whichever is greater.
2 8. Construction Requirements.
3 Retention facilities shall comply with the following:
4 a. Maintenance Berms.
5 Maintenance berms shall be provided and shall be a minimum of 15' in width for ponds with fencing
6 and a minimum of 10" in width for ponds without fencing. For ponds serving small drainage areas
7 (less than five -acres), where the applicant demonstrates that berm stability and access for maintenance
8 is sufficient, the above widths may be reduced, based upon sound and generally accepted engineering
9 practices and principles, by the Administrative Official.
0 b. Fencing.
1 Be fenced in areas utilizing retaining walls with a 30" or higher -grade differential, when side slopes
2 exceed the 4:1 maximum or when the Administrative Official determines that it is in the Public's best
3 interest due to health or safety concerns. The required fence shall comply with Schedule F.
4 c. Freeboard.
5 A minimum of V of freeboard above the design high water elevation shall be provided. For ponds
6 serving small drainage areas (less than five acres), where the applicant demonstrates that a lesser
7 freeboard is sufficient, the above freeboard may be reduced by the Administrative Official. For ponds
8 with reduced freeboard, the applicant must demonstrate that the design will attenuate post-
9 development discharge rates for the 100-year, 24-hour storm event at or below pre -development
0 discharge rates.
1 d. Side Slopes.
2 Maximum allowable side slopes shall be 4:1 unless otherwise approved by the Administrative Official.
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3 e. Vegetative Slope Stabilization.
4 Retention systems shall be stabilized with pervious material or permanent vegetative cover. Permanent
5 vegetative cover must be utilized except for pervious pavement systems, when Soil Conservation
6 Service hydrologic group "A" soils underlie the retention basin.
7 The disturbed areas in and around the ponds shall be revegetated. Top and side slopes shall be sodded.
8 Bottoms shall be seeded and mulched.
9 f. Pond Bottom Dimension.
0 Minimum pond bottom dimension shall be 4' and shall be a minimum of (24" above the seasonal high
1 ground water table.
2 g. Structure Requirements.
3 All pipes entering or leaving the retention/detention ponds shall have a permanent end treatment (i.e.,
4 headwall, mitered collar, control structure, etc.) and include energy dissipation.
5 h. Outfall Structures.
6 An outfall structure shall be provided for retention systems unless it is proven, using sound and
7 generally accepted engineering principles and practices, that the outfall structure is unnecessary. The
8 location of the structure and the shape of the pond shall be designed such that no "short-circuiting" of
9 the flow occurs and that maximum disposition of suspended solids is achieved. In all cases, retention
0 facilities shall be designed considering the event of a possible overflow. A path for such overflow shall
1 be determined and structures in the development so situated that no flood damage occurs either on -
site or off -site.
3 1) When the outfall structure employs a weir within an inlet to control the water surface (diversion
4 box), the structure shall be oversized and provide an access manhole or grate on both sides of the
5 weir.
6 2) Outfall structures shall be designed to prevent floating materials and oils from being discharged
7 into the receiving waters. Outfall structures shall be as simple as possible and shall employ fixed
8 control elevations (i.e., no valves, removable weirs, pumps, etc.).
9 3) Outfall structures shall limit peak off -site discharges to pre -development rates.
0 4) Whenever a broad -crested weir is used as an outfall/discharge, the surface where the run-off flows
1 over the weir shall be of a hard material, such as, concrete, geogrid, fabriform, etc., to prevent
2 erosion and preserve the designed elevation of the weir.
3 i. Design Without Positive Outfall.
4 Developments without a positive outfall or which discharge directly to a landlocked basin shall retain
5 all runoff resulting from the design storm as computed for the developed condition. The pond shall
6 recover the required volume by percolation through soil, evaporation or evapotranspiration within 14
7 days after the storm event.
8 j. Filled Berms.
9 Where filled berms will store water in excess of 2' above surrounding grade, calculations supporting
0 the stability of the filled berms shall be submitted, under seal, by a geotechnical engineer. In all cases
1 of filled berms, if excess seepage may be expected through the berm, a clay core liner may be required.
2 k. Retaining Walls.
3 If retaining walls are utilized as part of retention ponds, they may not exceed more than 50% of the
4 perimeter of the pond. The arrangement of walls must not impede pond access and maintenance. The
5 wall design shall also comply with Schedule G.
6 SECTION 2.2 WET PET>CN T'ION STUD MW A TER MANAGEMENT SYSTEMS
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7 C. Wet Detention Stormwater Management Systems.
8 Wet detention systems collect and temporarily store stormwater in a permanently wet impoundment in such
9 a manner as to provide for treatment though physical, chemical, and biological processes with subsequent
0 gradual release of the stormwater.
1 Wet detention stormwater management systems shall comply with the following:
2 1. Dedicated Detention Pond Plat.
3 Detention ponds, and access ways to ponds, within platted subdivisions shall not be dedicated or conveyed
4 in the form of an easement but rather shall be platted as a separate tract of land dedicated to the entity
5 responsible for maintenance; provided, however, that, a note shall be placed on the plat that the entity to
6 which the dedication relates may, at any time, require the fee simple owner to convey the tract to the
7 entity.
8 2. Redeveloped Sites.
9 Development which does not cause an increase or net decrease in impervious area shall be required to
0 comply only with paragraph C.3, of this Section.
1 3. Retention of Runoff.
2 Pollution abatement shall be accomplished by providing a treatment volume of the greater of the
3 following:
4 a. First 1" of runoff; or
5 b. 2.5" of runoff from the impervious area.
6 4. Outfall Criteria.
7 Detention ponds and detention with filtration ponds shall have an outfall structure. The location of the
8 structure and the shape of the pond shall be designed such that no "short-circuiting" or stagnation of the
9 flow occurs and that maximum removal of suspended solids is achieved.
a. When the outfall structure employs a weir within an inlet to control the water surface (diversion box),
the structure shall be oversized to provide an access manhole or grate on both sides of the weir
sufficient for maintenance.
b. The outfall shall be designed to prevent floating materials and oils from being discharged into the
receiving waters. Outfall structures shall be as simple as possible and shall employ fixed control
elevations (i.e., no valves, removable weirs, pumps, etc.).
c. The outfall structure shall limit peak off -site discharges to pre -development rates. The structure shall
be the discharge point for the filtration system.
d. Detention ponds shall be designed so that the outfall structures shall bleed down 50% the volume of
stor nwater as required by the design specifications within 24 to 30 hours following a storm event, but
no more than 1 /2 of this volume will be discharged within the first 24 hours.
e. Whenever a broad -crested weir is used as an outfall/discharge, the surface where the run-off flows
over the weir shall be of a hard material, such as, concrete, geogrid, fabriform, etc. to prevent erosion
and preserve the designed elevation of the weir.
4 5. Design Without Positive Outfall.
5 Developments without a positive outfall or which discharge directly to a landlocked basin shall retain all
6 runoff resulting from the design storm as computed for the developed condition.
7 6. Detention with Filtration.
8 Detention with filtration ponds shall be designed to attenuate peak outflows to pre -development rates and
9 to provide filtration for the pollution abatement volume.
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0 7. Permanent Pool.
1 Detention with filtration ponds shall contain a permanent pool of water sized to provide an average
2 residence time of at least 14 days during the wet season (June - October).
8. Littoral Zone.
4 Detention with filtration ponds shall provide a littoral zone to be designed as follows:
5 a. The littoral zone shall be gently sloped (6:1 or flatter). At least 30% of the wet detention system surface
6 area shall consist of a littoral zone. The percentage of littoral zone is based on the ratio of vegetated
7 littoral zone to surface area of the pons at the control elevation.
8 b. The treatment volume should not cause the pond level to rise more than 18" above the control elevation
9 unless the applicant demonstrates, using sound and generally accepted engineering principles and
0 practices that the littoral zone vegetation will survive at greater depths.
I c. 80% coverage of the littoral zone by aquatic plants, approved by the City, is required within the first
2 E24 months of completion of the system or as otherwise may be specified by permit conditions.
d. To meet the 80% coverage requirement, planting of the entire littoral zone is recommended. As an
4 alternative, portions of the littoral zone may be established by placement of wetland topsoil's (at least
deep) containing a seed source of desirable native plants. When utilizing this alternative, the littoral
6 zone shall be stabilized by mulching or other means and at least the portion of the littoral zone within
7 25' of the inlet and outlet structures shall be planted.
8 e. In lieu of littoral zone. In. lieu cf t requirements of paragraph C.8 of this Section, the applicant may
9 provide either of the following:
0 1) At least 50% additional permanent pool volume over that specified in paragraph C.7 of this section,
1 above; or
2 2) Treatment of the storm water pursuant to rules 40C-42.024(2)(B)2., 3., 4., 6., or (c), Florida
3 Administrative Code, prior to the stormwater entering the wet detention pond.
4 9. Pool Depth.
i Detention with filtration ponds shall be designed so that the mean depth of the permanent pool is between
6 2' and 8' and the maximum depth does not exceed twelve (12' below the invert of the bleed down device,
7 unless the applicant affirmatively demonstrates, using sound and generally accepted engineering
8 principles and practices, that alternative depths will not inhibit the physical chemical, and biological
9 treatment processes or cause the resuspension of pollutants into the water column due to anaerobic
0 conditions in the bottom sediments and water.
1 10. Flow Paths.
2 Detention with filtration ponds shall be designed so the flow path through the pond has an average length
to width ratio of at least 2: 1. The alignment and location of inlets and outlets shall be designed to maximize
4 flow paths in the pond. If short flow paths are unavoidable, the effective flow path shall be increased by
adding diversion barriers such as islands, peninsulas, or baffles to the pond. Inlet structures shall be
6 designed to dissipate the energy of water entering the pond.
7 11. Bleed Down Devices.
8 Detention with filtration ponds shall be designed so that bleed down devices incorporating dimensions
9 smaller than 3" minimum width or less than 20 degrees for "v" notches include a device to eliminate
0 clogging. Examples include baffles, grates and pipe elbows.
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1 12. Location of Bleed Down Devices.
2 Detention with filtration ponds shall be designed so that bleed down structure invert elevations are at or
3 above the estimated post -development normal ground water table elevation. If the structure is proposed to
4 be set below this elevation, ground water inflow shall be considered in the drawdown calculations,
5 calculation of average residence time, estimated normal water level in the pond, and pollution removal
6 efficiency of the system. Proposed peak discharge resulting from the design storm for the parcel shall not
7 exceed predevelopment peak discharge.
8 13. Access.
9 Detention with filtration ponds shall provide for permanent maintenance easements or other acceptable
0 legal instruments, as approved by the City Attorney, to allow for access to and maintenance of the system,
1 including the pond, littoral zone, inlets, and outlets. The easement or other acceptable instrument must
2 cover the entire littoral zone.
3 14. Discharge to Outstanding Florida Waters.
4 Wet detention systems which direct discharge to Class I, Class II, or Outstanding Florida Waters shall
5 provide:
6 a. the requirements in paragraphs CA, C.8 and C.11-13
7 b. an additional 50% of the applicable treatment volume specified in paragraph C.3, and
8 c. an additional 50% of the applicable permanent pool volumes specified in paragraphs C.7 or C.8.e of
9 this section.
0 15. Additional Construction Requirements.
1 Detention facilities shall comply with the following:
2 a. Maintenance Berms.
3 Adequate maintenance berms shall be provided and shall be a minimum of 15' in width for ponds with
4 fencing and a minimum of 10' in width for ponds without fencing. For ponds serving small drainage
5 areas (less than five acres), where the applicant can demonstrate, using sound and generally accepted
6 engineering principles and practices, that berm stability and access for maintenance is sufficient, the
7 above widths may be reduced by the Administrative Official.
8 b. Fencing.
9 Be fenced in areas utilizing retaining walls with a 30" or higher -grade differential, when side slopes
0 exceed the 4:1 maximum or when the Administrative Official determines that it is in the public's best
1 interest due to health or safety concerns. The required fence shall comply with Schedule F.
2 c. Freeboard.
3 A minimum of 1' of freeboard above the design high water elevation shall be provided. For ponds
4 serving small drainage areas (less than five acres), where the applicant can demonstrate, using sound
5 and generally accepted engineering principles and practices, that a lesser freeboard is sufficient, the
6 above freeboard may be reduced by the Administrative Official. For ponds with reduced freeboard,
7 the applicant must demonstrate that the design will attenuate post -development discharge rates for the
8 100-year, 24-hour storm event at or below pre -development discharge rates.
9 d. Side Slopes.
0 Maximum allowable side slopes shall be 4:1 unless otherwise approved by the Administrative Official,
1 based on sound and generally accepted engineering principles and practices. Slopes shall be sodded to
2 1' above the bleeder invert elevation.
3 e. Bottom Dimension.
4 Minimum pond bottom dimension shall be 4'.
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f. Structure Requirements.
All pipes entering or leaving a retention/detention ponds shall have a permanent end treatment (i.e.,
headwall, mitered collar, control structure, etc.) and include energy dissipation.
g. Filled Berms.
Where filled berms will store water in excess of 2' above surrounding grade, calculations supporting
the stability of the filled berm shall be submitted by a geotechnical engineer, under seal. In all cases
of filled berms, if excess seepage may be expected through the berm, a clay core liner may be required.
h. Retaining Walls.
If retaining walls are utilized as part of a detention pond, they may not exceed more than 50% of the
perimeter of the pond. The arrangement of walls shall not impede pond access and maintenance. The
wall design shall comply with Schedule G.
i. Fountains.
Wet detention ponds shall have a fountain, or fountains installed, which shall be decorative in nature.
The size and number of fountains shall be proportional to the area of the pond and equipment used.
QVC-rTCYKT'1 11/1TL7 CTT TD A'Pl"'KT CVC-rUA4Q
D. Detention With Filtration Systems.
Detention with filtration systems is the selective removal of pollutants from stormwater by the collection and
temporary storage of stormwater and the subsequent gradual release of the stormwater into surface waters of
the State through at least 2' of suitable fine textured granular media such as porous soil, uniformly graded
sand, or other natural or artificial fine aggregate, which may be used in conjunction with filter fabric and/or
perforated pipe.
Detention with filtration systems shall comply with the following:
1. Retention of Runoff.
Pollution abatement shall be accomplished by providing detention with filtration for the greater of the
following:
a. Off-line detention with filtration of the first 1" of runoff or 2.5" inches of runoff from the impervious
area, whichever is greater; or
b. On-line detention with filtration of an additional 1/2" of runoff over that volume specified in
subparagraph D. La, whichever is greater.
2. Post -Storm Capacity.
Detention with filtration systems shall provide the capacity for the specified treatment volume of
stormwater within 72 hours following a storm event.
3. Filter Material.
Detention with filtration systems shall have pore spaces large enough to provide sufficient flow capacity
so that the permeability of the filter is equal to or greater than the surrounding soil. The design shall ensure
that the particles within the filter do not move. When sand or other fine textured aggregate, other than
natural soil, is used for filtration, the filter material shall be of quality sufficient to satisfy the following
requirement:
a. Filter material shall be washed (less than 1% silt, clay and organic matter) unless filter cloth is used
which is suitable to retain the silt, clay and organic matter within the filter:
b. Filter material shall have a uniformity coefficient of 1.5 or greater, but not more than 4.0.
c. Filter material shall have an effective grain size of 0.20 to 0.55 millimeters in diameter. These criteria
are not intended to preclude the use of multilayered filters nor the use or materials to increase ion
exchange, precipitation or the pollutant absorption capacity of the filter.
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9 4. Maintenance and Inspection.
0
Detention with filtration systems shall include, at a minimum, capped and sealed inspection and cleanout
1
ports which extend to the surface of the ground at the following locations for each drainage pipe:
2
a. The terminus; and
3
b. Every 400' or every bend of 45 or more degrees, whichever is less.
4 5.
Filter Stabilization.
5
Detention with filtration systems shall utilize filter fabric or other means to prevent the filter material from
6
moving or being washed out through the perforated pipe.
7 6.
Safety Factor.
8
Detention with filtration systems shall be designed with a safety factor of at least 2 unless the applicant
9
affirmatively demonstrates based on plans, test results, calculations or other information that a lower
0
safety factor is appropriate for the specific site conditions. Examples of applying safety factors include,
1
but are not limited to, the following:
2
a. Reducing the design percolation rate by half,
3
b. Doubling the length of the filtration system; or
4
c. Designing for the required draw down within 36 instead of 72 hours.
5 7.
Invert Elevation of the Perforated Pipe.
6
Detention with filtration systems shall be designed so that the invert elevation of the perforated pipe is
7
above the seasonal high ground water table elevation. If the pipe is proposed to be set below this elevation,
8
the pipe should be separated by structural means from the hydraulic contribution of the surrounding water
9
table or groundwater inflow must be considered in the drawdown calculations.
0 8.
Discharge to Outstanding Florida Waters.
1
Filtration systems which direct discharge to Class 1, Class II, or Outstanding Florida Waters shall provide
2
either of the following:
3
1. At least an additional 50% of the applicable treatment volume specified in subparagraph D. La., above.
4
Off-line detention with filtration shall be provided for at least the first 1" of runoff or 2.5" of runoff
5
from the impervious area, whichever is greater, of the total amount of runoff required to be treated; or
6
2. On-line detention with filtration of the runoff from the three-year, one -hour storm or an additional
7
50% of the treatment volume specified in subparagraph D. Lb., whichever is greater.
8 9.
Additional Construction Requirements.
9
Detention with filtration facilities shall comply with the following:
0
a. Outfall Criteria.
1
Have an outfall structure, except where deemed unnecessary by the Administrative Official, based
2
upon sound and generally accepted engineering practices and principles. The location of the structure
3
and the shape of the pond shall be designed such that no "short-circuiting" of the flow occurs and that
4
maximum disposition of suspended solids is achieved.
5 1) When an outfall structure employs a weir within an inlet to control the water surface (diversion
6 box), the structure shall be oversized and provide an access manhole or grate on either side of the
7 weir. Outfall structures shall be designed to prevent floating materials and oils from being
8 discharged into the receiving waters. Unless otherwise approved by the Administrative Official,
9 based upon sound and generally accepted engineering practices and principles, outfall structures
0 shall be as simple as possible and shall employ fixed control elevations (i.e., no valves, removable
1 weirs, pumps, etc.).
2 2) Each outfall structure shall limit peak off -site discharges to pre -development rates and shall be the
3 discharge point for the filtration system.
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4
3) Detention with filtration ponds shall be designed to attenuate peak outflows to pre -development
5
rates and to provide filtration for the pollution abatement volume.
6 b.
Maintenance Berms.
7
Provide adequate maintenance berms which are a minimum of 15' in width for ponds with fencing
8
and a minimum of 10' in width for ponds without fencing. For ponds serving small drainage areas
9
(less than five acres), where the applicant can demonstrate that berm stability and access for
0
maintenance is sufficient, based upon sound and generally accepted engineering practices and
1
principles, the above widths may be reduced by the Administrative Official, based upon sound and
2
generally accepted engineering practices and principles.
3 c.
Fencing.
4
Be fenced in areas utilizing retaining walls with a thirty (30" or higher -grade differential, when side
5
slopes exceed the 4:1 maximum or when the Administrative Official determines that it is in the public's
6
best interest due to health or safety concerns. The required fence shall comply with Schedule F.
7 d.
Freeboard.
8
Be designed to have a minimum of 1' of freeboard above the design high water elevation shall be
9
provided. For ponds serving small drainage areas (less than five acres), where the applicant
0
demonstrates that a lesser freeboard is sufficient, the above freeboard may be reduced with the
1
approval of the Administrative Official, based upon sound and generally accepted engineering
2
practices and principles. For ponds with reduced freeboard, the applicant must demonstrate that the
3
design will attenuate post -development discharge rates for the 100-year, 24-hour storm event at or
4
below pre -development discharge rates.
5 e.
Side Slopes.
6
Provide maximum allowable side slopes are 4:1 unless otherwise approved by the Administrative
7
Official, based upon sound and generally accepted engineering practices and principles.
8 f.
Bottom Dimension.
9
Provide minimum bottom dimension of 4'.
0 g.
Structure Requirements.
1
Ensure that pipes entering or leaving the retention/detention ponds shall have a permanent end
2
treatment (i.e., headwall, mitered collar, control structure, etc.) which include energy dissipation.
3 h.
Filled Berms.
4
Where filled berms will store water in excess of 2' above surrounding grade, calculations supporting
5
the stability of the filled berm shall be submitted by a geotechnical engineer. In all cases of filled
6
berms, if excess seepage may be expected through the berm, a clay core liner may be required.
7 i. Retaining Walls.
8 If retaining walls are utilized as part of a detention pond, they may not exceed more than 50% of the
9 perimeter of the pond. The arrangement of walls shall not impede pond access and maintenance. The
0 wall design shall also comply with Schedule G.
I SECTION 2.4 U ATL?(D(i D EX�FI TUATION TRENCH SYSTEMS
2 E. Underground Exfiltration Trench Systems.
3 An underground exfiltration system is the below -ground system consisting of a conduit such as perforated
4 pipe surrounded by natural or artificial aggregate which is utilized to percolate stormwater into the ground.
5 Underground exfiltration trench systems shall:
6 1. Retention of Runoff.
7 Ensure pollution abatement by providing for either of the following:
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8 a. Off-line storage of the first 1/2" of runoff or 1-1/4 inches of runoff from the impervious area,
9 whichever is greater, or
0 b. On-line storage of an additional 1/2" of runoff over that volume specified in subparagraph E. La.
1 2. Post -Storm Capacity.
2 Provide the capacity for the specified treatment volume of stormwater within 72 hours following a storm
3 event. The storage volume shall be provided by a decrease of stored water caused only by percolation into
4 paragraph E. La, above.
5 3. Safety Factor.
6 Be designed with a safety factor of at least two unless the applicant affirmatively demonstrates based on
7 plans, test results, calculations or other information that a lower safety factor is appropriate for the specific
8 site conditions. Examples of how to apply this factor include, but are not limited to, reducing the design
9 percolation rate by half or designing for the required draw down within 36 hours instead of 72 hours.
0 4. Pipe Standards.
1 Be designed to percolate surface runoff through a sub -surface system. The exfiltration system shall consist
2 of a minimum 6" diameter perforated pipe. The perforated pipe shall be surrounded by a minimum of 12"
3 of coarse and calcium free aggregate. The coarse aggregate shall be completely wrapped by a filter fabric
4 and the trench shall be backfilled with good, clean sand. Exfiltration systems shall be designed such that
5 the bottom of the trench is not below the high groundwater table elevation.
6 5. Sediment Sumps.
7 Provide sediment sumps prior to the trench which shall:
8 a. Remove a particle of 0.1 millimeter in diameter (approximately a No. 100 sieve size) unless the
9 applicant affirmatively demonstrates that another grain size is more appropriate for the site.
0 b. Be designed for an inflow rate equal to the design peak flow rate of the project's internal storm water
1 system conveying water to the exfiltration trench.
2 6. Maintenance and Inspection.
3 Be designed considering maintenance requirements. which provide cleanout and inspection sumps at the
4 terminus of each pipe.
5 7. Invert Elevation of Trench.
6 Be designed so that the invert elevation of the trench must be at least two feet above the seasonal high
7 ground water table elevation unless the applicant demonstrates based on plans, test results, calculations or
8 other information that an alternative design is appropriate for the specific site conditions.
9 8. Capacity to Retain Treatment Volume.
0 Be designed so that the system shall have the capacity to retain the required treatment volume without
1 considering discharges to ground or surface waters.
2 9. Access Manholes.
3 Locate access manholes at terminal ends, turns and changes in grade and shall be spaced no greater than
4 300' apart.
5 10. Discharge to Outstanding Florida Waters.
6 Direct discharge to Class I, Class II, or Outstanding Florida Waters shall provide either of the following:
7 a. At least an additional 50% of the applicable treatment volume specified in subparagraph E. La. Off-
8 line storage must be provided for at least the first 1/2" of runoff or one and 1-1/4" inches of runoff
9 from the impervious area, whichever is greater, of the total amount or runoff required to be treated; or
0 b. On-line storage of the runoff from the three-year, one -hour storm or an additional 50% of the treatment
1 volume specified in subparagraph E. Lb, whichever is greater.
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2 SECTION 2.5 T TATDERDD A IN ST- 1D MW A TE MANAGEMENT SYSTEMS
3 F. Underdrain Stormwater Management Systems.
4 An underdrain is a drainage system installed beneath a stormwater holding area to improve the infiltration
5 and percolation characteristics of the natural soil when permeability is restricted due to periodic high water
6 table conditions or the presence of layers of fine textured soil below the bottom of the holding area. These
7 systems usually consist of a system of interconnected below -ground conduits such as perforated pipe, which
8 simultaneously limit the water table elevation and intercept, collect, and convey stormwater which has
9 percolated though the soil.
0 Natural environmental features in the City primarily associated with soil limitations and high groundwater
1 conditions normally necessitate the provision of underdrains in order to comply with these drainage
2 requirements. Underdrains shall:
3 1. Runoff.
4 Accomplish pollution abatement by providing for either of the following:
5 a. Off-line storage of the first 1/2" of runoff or 1-1/4" of runoff from the impervious area, whichever is
6 greater; or
7 b. On-line storage of an additional 1/2" of runoff over that volume specified in subparagraph F.1.a.
8 c. Underdrain systems may contain areas of standing water only following a rainfall.
9 2. Post -Storm Capacity.
0 Provide the capacity for the specified treatment volume of stormwater within 72 hours following a storm
1 event. The storage volume shall be provided by a decrease of stored water caused only by percolation
2 through soil with subsequent transport through the underdrain pipes, evaporation or evapotranspiration.
3 3. Safety Factor.
4 Be designed with a safety factor of at least two unless the applicant affirmatively demonstrates based on
5 plans, test results, calculations or other information that a lower safety factor is appropriate for the specific
6 site conditions. Examples of how to apply this factor include but are not limited to reducing the design
7 percolation rate by half or designing for the required drawdown within 36 hours instead of 72 hours.
8 4. Groundwater Drawdown Criteria.
9 Ensure that the water table shall not be lowered more than 3' below the high-water table for the parcel, or
0 the water table shall not be lowered more than 5' below the high-water table at the location of the
1 underdrain.
2 5. Pond Underdrain Criteria.
3 Be designed to provide a drawdown for detention basins and to provide detention with filtration for
4 purposes of pollution abatement. The design of all pond underdrains shall be approved by the
5 Administrative Official based upon sound and generally accepted engineering practices and principles.
6 6. Underdrain Outlet.
7 Be designed such that the tailwater elevation shall not exceed the top of the underdrain outlet pipe.
8 7. Cleanouts.
9 Cleanouts shall be provided at the ends of each run and at intervals not to exceed 100'.
0 8. Maintenance and Inspection Requirements.
1 All privately maintained pond underdrains shall be inspected and maintained on an annual basis to ensure
2 proper operation. Written confirmation of inspection must be received by the City within 30 days of the
3 inspection. If the underdrain system no longer functions as designed and approved, such underdrains shall
4 be removed, replaced or repaired.
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Include, at a minimum, a capped and sealed inspection and cleanout ports which extend to the surface of
6 the ground at the following locations of each drainage pipe:
7 a. The terminus; and
8 b. Every 400' or every bend of 45 or more degrees, whichever is less.
9 9. Tree Clearance.
0 Not be located within 15' from any proposed or existing tree.
1 10. Pond Underdrain Standards.
2 Be designed as either a flexible, fine aggregate filter system or a rigid, coarse aggregate filter system
adhering to the following requirements:
4 a. Flexible, Fine Aggregate Filter.
i The flexible, fine aggregate filter system shall consist of a minimum 6" diameter, perforated, and
6 corrugated tubing continuously surrounded with a filter fabric envelope (sock) to prevent the soil from
7 moving and being washed out through the underdrain pipe. The tubing shall be covered by a minimum
8 of 2' of fine aggregate conforming to the size and gradation specified in Section 902, Florida
9 Department of Transportation (FDOT) Standard Specifications for Road and Bridge Construction,
0 latest edition. The filter aggregate shall be backfilled with a blanket of crushed stone or equivalent
1 material.
2 b. Rigid, Coarse Aggregate Filter.
The rigid, coarse aggregate filter system shall consist of a minimum 6" diameter perforated PVC pipe.
4 The pipe shall be surrounded by a minimum of 6" of calcium -free, coarse aggregate meeting Section
5 901, FDOT Standard Specifications for Road and Bridge Construction, latest edition. The coarse
6 aggregate shall be completely wrapped in a filter fabric and backfilled with a minimum of 2' of fine
7 aggregate conforming with Section 902, FDOT Standard Specifications for Road and Bridge
8 Construction, latest edition.
9 c. Indigenous Soil.
0 Provide at least 2' of indigenous soil between the bottom of the stormwater holding area and the
1 underdrain pipe(s).
2 d. Discharge Points.
Underdrains shall be designed with free gravity outlet at carefully selected discharge points. Erosion
4 control measures shall be stabilized with permanent vegetative cover at all discharge points.
11. Adjacent Property Protection.
6 Not significantly affect water table conditions on adjacent property. The Administrative Official may
7 require the applicant to implement specific measures deemed necessary to avoid or correct any adverse
8 impact of drainage facilities upon adjacent property based upon sound and generally accepted engineering
9 practices and principles.
0 12. Discharge to Outstanding Florida Waters.
1 Underdrain systems which direct discharge to Class I, Class Il, or Outstanding Florida Waters shall
provide either of the following:
a. At least an additional 50% of the applicable treatment volume specified in subparagraph F. La. Off-
4 line storage must be provided for at least the first 1 /2" of runoff or 1-1 /4" of runoff from the impervious
i area, whichever is greater, of the total amount of runoff required to be treated; or
6 b. On-line storage of the runoff from a 3-year, 1-hour storm or an additional 50% of the treatment volume
7 specified in subparagraph F.I .b., whichever is greater.
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8 13. Roadway Underdrains.
9 Be designed to control the high groundwater elevation to within one foot of the bottom of the road base.
0 In developments with more than 500' of roadway underdrain, the flow shall not be routed through the
1 retention/detention facility but shall discharge to the receiving waters through an independent system
2 unless otherwise approved by the Administrative Official based upon sound and generally accepted
3 engineering practices and principles.
a. Unless otherwise approved the slope of roadway underdrains shall conform with the curb slope.
Wherever roadway construction reveals unexpected water bearing strata that would cause deterioration
of the pavement, underdrains or other acceptable alternative that will provide necessary measures to
maintain the structural integrity of the road will be required even though not shown on the approved
plans. The Administrative Official shall be notified of the presence of such water bearing strata and
shall approve measures to overcome such natural limitations to roadway construction.
b. All roadway underdrains shall be placed 2' from the back of curb.
c. Roadway underdrains shall not be placed deeper than 6" above the seasonal low water table level.
d. All roadway underdrains and underdrains located along lot lines shall be clearly identified on the plans
and in the field to prevent their disturbance during utility installation.
e. Wherever road cuts in otherwise suitable soils indicate that the finish grade will result in a road -
surface -to -water table relationship that adversely exceeds the degree of limitation stated above,
underdrains or other acceptable alternative that will provide necessary measures to maintain the
structural integrity of the road will be required.
f. Filtering media shall consist of stone, gravel, or slag, contain no friable materials, or be cementous in
nature.
g. Underdrain pipe specifications shall be in accordance with the American Society for Testing and
Materials, Designation D3033-5. Such pipe shall consist of a minimum 6" diameter perforated PVC
pipe and shall be surrounded by a minimum of 6" of calcium -free aggregate. The coarse aggregate
shall be completely wrapped in a filter fabric and backfilled with good, clean sand.
h. The City will not accept for maintenance any new roadway which is dependent on underdrains to
control the water table. This includes, but is not limited to, roadways designed without underdrain but
found to require them during the bonding period. The subdivision home/property owner association
shall maintain all roadways utilizing this design and a development order and subdivision plat, or both,
as appropriate shall so clearly state.
9 SECTION 4.0 ROADWAY DRAINAGE DESIGN
0 C`L / TUN 3.0 ROADWAY D A TAT A GE DESIGN
1 SECTION 3.1 ALL T ROADS
2 A. All Roads.
3 All roads shall be designed in accordance with the following standards (see Section 334.03, Florida Statutes,
4 for pertinent definitions):
5 1. Cross -Slope.
6 All roads shall be designed using a standard crown section (runoff directed from the centerline toward the
7 edge of pavement). Super elevated curves may direct runoff across all travel lanes. The minimum
8 allowable cross -slope for all roads shall be 0.02' per foot.
9 2. Minimum Groundwater and Highwater Clearances.
0 All roads shall be designed to provide a minimum clearance of one 04 foot between the bottom of the
1 base and the estimated seasonal highwater table, or the artificial water table induced by an underdrain or
2 exfiltration system. See Section 3.01.13.h
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3 SECTION RURAL A T 89GT�S
4 B. Rural Sections.
5 Rural sections, if approved by the City Commission, shall comply with the following standards.
6 1. Post -Storm Capacity.
7 Provide the capacity for the given volume of stormwater within E72 hours following the storm event
8 assuming average antecedent conditions. The storage volume shall be provided by a decrease of
9 stormwater caused only by percolation through soil, evaporation or evapotranspiration.
0 2. Runoff Percolation.
1 Provide swale systems which percolate 80% of the runoff from the three-year, one -hour storm.
2 3. Slope.
3 Design with swale section in accordance with the following standards:
4 Flush ribbon curb: 6" minimum
5 Swale front slope: 10:1 maximum
6 Swale back slope: 10:1 maximum
7 4. Discharge to Outstanding Florida Waters.
8
Direct discharge by means of swale systems to Class I, Class II, or Outstanding Florida Waters shall
9
percolate the runoff from the three-year, one -hour storm.
0 5.
State Swale Criteria.
1
Provide for swales which meet the criteria in subsection 40C-42.021(29), Florida Administrative Code.
2 SECTION
3.3 T MAN SECTIONS
3 C. Urban Sections.
4 All urban sections shall:
5 1.
Curb, Gutter and Grades.
6
Be designed using either Miami curb and gutter or standard curb and gutter with the minimum allowable
7
centerline grade for all streets with curb and gutter shall be 0.30%, except in intersections where flatter
8
grades shall be allowable.
9 2.
Allowable Length of Gutter Flow.
0
Unless the design requires shorter distance, provide maximum distance in which surface water will be
1
allowed to run in the gutter shall be as follows:
2
Miami curb and gutter: 800'
3
Standard curb and gutter: 1,200'
4 3.
Inlet Interception Rates.
5
Space inlets in such a manner that 90% of the approaching gutter flow shall be intercepted.
6 4.
Low Point Inlets.
7
On arterial and collector roads, in order to prevent siltation and to provide for a safety factor against
8
clogging of a single inlet in a sump location, it is required to construct multiple inlets at all sump locations.
9
Preferably three inlets should be constructed on each side of the roadway, one at a low point and one each
0
side of a point 0.2' higher than the low point. On all other roads, inlets in sump locations shall be designed
1
with an extra -large throat.
2 5. Inlets.
3 Provide curb inlets of heavy construction design which shall not be constructed within the radii of curb
4 returns and which:
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a. Are placed at all points where the cross slope on a roads reverses from a negative to a positive to
prevent stormwater from crossing the road.
b. Wherever possible, placed in front of lot corners.
c. Do not allow storm water runoff to enter the roads gutter from areas outside of the roadway limits.
Off -site flows from directly connected impervious areas more than 1/2 acre shall be intercepted prior
to the right-of-way line.
d. Have grates which are designed to minimize clogging with debris such as leaves.
e. Have top elevations of inlets flush with adjacent sidewalks and have slopes between inlet tops and
sidewalks shall be 0.02' per foot as a maximum.
4 6. Tolerance.
5 The tolerance for ponded water in curb construction is 1/4" maximum and if exceeded, the section of curb
6 shall be removed and constructed to grade.
7 SECTION 5.0 CLOSED STORM DRAINAGE SYSTEMS
8 SECTION 4.0 CLOSED STORM DRAINAGE SYsT-EN =S
9 S nPON 4.1 STORM S PAIE T'�Or1CFdTEFI4
0
1
2
3
4
5
6
A. Storm Sewer Design Criteria.
All storm sewers shall be designed as follows:
1. Allowable Velocities.
All storm sewers shall be designed and constructed to produce velocities within the following range when
flowing full:
Minimum velocity:
Maximum velocity:
7 2. Energy Dissipation.
2.5' per second
10' per second
8 All systems shall consider exit velocities. Energy dissipation structures shall be provided when exit
9 velocities become excessive.
0 3. Hydraulic Gradient.
1 All storm sewers shall be designed considering the hydraulic gradient of the system. The hydraulic grade
2 line shall be calculated utilizing pipe friction losses and entrance and exit losses in each manhole. The
3 maximum allowable hydraulic gradient for roads shall be as follows:
4 Arterial and collector roads: 1.0' below gutter line
5 Local and interior roads: 0.5' below gutter line
6 4. Design Tailwater.
7 All storm sewer systems shall be designed considering the tailwater condition of the receiving waters.
8 When information is unavailable, maximum tailwater elevations shall be determined based upon a 25-
9 year storm.
0 SECTION 4.2 !`T TT 1TRA T DESIGN CRITERIA
1 B. Culvert Design Criteria.
2 All culverts shall be desianed as follows:
3 1. Minimum Allowable Slope.
4 All culverts shall be designed and constructed to produce a minimum velocity of 2.5' per second (fps)
5 when flowing full. Culverts which are parallel to roadways shall be placed at a grade not less than the
6 minimum road grade.
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7 2. Energy Dissipation.
8 All culverts shall be designed considering exit velocities. Energy dissipation structures shall be provided
9 when exit velocities become extreme.
0 3. Allowable Headwater.
1 The allowable headwater of a culvert installation shall be:
2 Arterial and collector roads: 1.0' below edge of pavement
Local and interior roads: 0.5' below edge of pavement
4 4. Design Tailwater.
5 All culverts shall be designed considering the tailwater condition of the receiving waters. Where
6 information is unavailable, maximum tailwater elevations shall be determined based upon the storm event
7 utilized in the culvert design.
8 SECTION 4.3 D A TAT A !-_tL PIPES AND STRUCTURES
RES
9 C. Drainage Pipes and Structures.
0 1. Pipe Size.
1 The minimum allowable drainage pipe size shall be 15".
2. Length.
3 The relationship between pipe size and maximum length of pipe allowable without an access structure
4 shall be as follows:
Pipe Size: Maximum Length: ��
< IV 300'
>18" to < 36" 400'
42" and Larger 500'
5 3. Structure Requirements.
6 All storm pipes shall have an end structure such as but not limited to headwalls, mitered collars, inlets and
7 manholes.
8 4. Pipe Clearance.
9 Unless otherwise authorized by the Administrative Official, the minimum clearance for all storm pipes
0 shall be:
Description: Clearance:
From bottom of roadway base to crown of pipe: 1.0'
Utility crossing, outside edge to outside edge: 0.5'J
1 5. Public Roads.
2 All pipes crossing roads within public rights -of -way shall be either reinforced concrete pipe or elliptical
3 reinforced concrete pipe or Class II Polypropylene as approved by FDOT. All pipes shall be rated for a
4 100-year service life uer FDOT standards
5 6. Conflict Manholes.
6 Conflict manholes shall be used only when there is no reasonable alternate design based on sound and
7 generally accepted engineering principles and practices. Where it is necessary to allow a sanitary line or
8 other utility to pass through a manhole, inlet or junction box, the utility line shall be ductile iron or another
9 suitable material. No joints are to be inside the manhole.
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0 a. Where utility lines pass through manholes, the utility line shall be placed in such a manner as to
1 provide a minimum of 1' clearance between the bottom of the manhole and the bottom of the shell of
2 the utility pipe.
3 b. Conflict manholes shall be over -sized to accommodate the decreased maneuverability inside the
4 structure and flow retardance.
5 7. Storm Sewer Alignment.
6 All storm sewer layouts shall avoid abrupt changes in direction or slope and shall maintain reasonable
7 consistencies in flow velocity unless specially designed and accounted for in head loss calculations.
8 All storm sewer systems shall maintain a reasonable slope through all manholes. Manholes shall be
9 required wherever there is a change in pipe size, material, slope or vertical or horizontal alignment.
8. Inlets, Manholes and Junction Boxes.
a. All inlets, manholes and junction boxes shall conform to the latest edition of the FDOT Roadway and
Traffic Design Standards. Inlets which require heavy tops shall be either FDOT Types 1, 2, 3 or 4.
b. Pipes shall extend through the wall and be flush with inside wall. Concrete shall be constructed around
them neatly. All surfaces shall be plastered so as to prevent leakage. Water -stop materials shall be
used whenever practicable. Plastered areas shall not crack and shall be properly prepared to bond to
old surfaces. Paved inverts are required.
c. For all concrete structures, all fins and irregular projections shall be chipped off flush with the surface
immediately following the removal of forms. All projecting wires and nails shall be cut off at least
1/2" under the surface. All cavities produced by metal spacers, form ties, bolts, honeycomb spots, etc.,
shall be carefully cleaned, saturated with water and then carefully painted with mortar. All construction
and expansion joints in the completed work shall be left carefully tooled and free of mortar and
concrete. Joint filler shall be left exposed for its full length, with clean edges. Mortar topping for upper
horizontal surfaces shall not be used.
d. For all concrete surfaces which are to receive a surface finish, the contractor shall remove the forms
and immediately finish the concrete after the concrete has set sufficiently.
6 SECTION 6.0 OPEN STORM DRAINAGE SYSTEMS
7 e iON 5.0 OPEN S-TORA4 DRAINAGE SYST-FiMS
8 Open drainage systems are considered to be grassed swales, ditches and canals. This section applies to all such
9 open drainage systems except roadside swales.
0 A. Soils Conditions.
1 Open storm drainage systems are permittable only within areas that do not contain high water table soils. The
2 bottom of the drainage facility shall not be located below the seasonal high-water table elevation.
3 B. Allowable Velocities.
4 All open storm drainage systems shall be designed and constructed to produce velocities not greater than 2.5'
5 per second.
6 C. Minimum Longitudinal Grade.
7 The longitudinal grade of open drainage systems shall not be less than 0.05%.
8 D. Design Tailwater.
9 All open channels shall be designed considering the tailwater condition of the receiving waters. Where
0 information is unavailable, maximum tailwater elevation shall be determined based upon the storm event
1 utilized in the channel design.
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E.
Channel Curvature.
Without channel protection, a minimum centerline radius of 50' or 10 times the bottom width, whichever is
4
larger, shall be utilized.
5 F.
Fencing.
6
Open drainage systems shall be fenced when the water depth exceeds two 2' for a period greater than 24 hours
7
or the depth of the ditch exceeds 5'. Open drainage ways with slopes of greater than 4:1 shall be fenced with
8
fences which comply with Schedule G.
9 G.
Side Slopes.
0
The maximum allowable side slopes shall be:
Ditch or Canal Depth Side Slopes
3' or less: 4:1
Greater than 3' 3:1
1 H.
Bottom.
2
The minimum bottom dimension of open drainage systems shall be 4'. Swales 14f V deep or less may have
3
a triangular cross-section.
4 1.
Maintenance Berm.
5
All open drainage systems shall have an unobstructed, stabilized maintenance berm on one or both sides. The
6
minimum requirement for maintenance berm is shall be as follows:
Ditch or Canal Top Width Maintenance Berm Required 0
20' or less: 15' one side
20' to 40' : 15' both sides
Greater than forty 40': 20' both sides
7 1
Freeboard.
8
A minimum freeboard of 1' shall be maintained between the design water surface and the top of slope for all
9
open channels.
0 K.
Slope Protection.
1
All side slopes and maintenance berms of open drainage systems shall be vegetated to provide a dense stand
2
of grass within 30 days. The following is a list of acceptable materials:
Season: Material:
May -September Sod
October -April Seed and Mulch u
3 L.
Channel Protection.
4
Unless otherwise approved by the Administrative Official, the following minimum requirements shall be
5
provided for protection of the wetted perimeter during design flows:
Ditch Grade: Protection Required:
U
0.05% - 1.00% Seed and Mulch
1.00% - 2.00% I Sod II
2.00% - Greater Paving or suitable alternative
6 M. Utility Crossing.
7 Where it is necessary for a utility to cross an open drainage system, the following shall be adhered to:
8 1. Minimum of a 3' of cover from the design grade of the waterway.
9 2. Utilities shall be adequately marked to protect against accidental damage during maintenance operations.
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0 3. Aerial supports are prohibited within in the confines of the waterway.
1 4. All sleeves or crossings shall meet the minimum standards and specifications according to the FDOT
2 utility accommodation guidelines.
3 SECTION 7.0 DRAINAGE STRUCTURE MATERIAL SPECIFICATIONS
4 SCION 6.0 D k17P4A E STRUCTURE MATERIAL -SPECIFI .^c—riTivx^*lS
5 Drainage structures and materials shall conform to the latest edition of the Florida Department of Transportation's
6 Roadway and Traffic Design Standards and Standard Specifications for Road and Bridge Construction. Drainage
7 structures and materials not detailed in aforementioned standards and specifications shall be designed to conform
8 with sound and generally accepted engineering principles and practices and shall require approval by the
9 Administrative Official. The Administrative Official may require a drainage structure design differing from
0 FDOT standards when necessary.
1 A. Pipe Materials.
2 Shall meet the requirements of the latest edition of the FDOT Standard Specifications for Road and Bridge
3 Construction.
4 All metal pipes not employing a water -tight band at the joints shall have all joints wrapped with filter fabric.
5 B. Underdrains.
6 The following is a list of underdrain materials acceptable for use in the:
7 1. Perforated Corrugated Tubing. Corrugated, polyethylene tubing perforated throughout and meeting the
8 requirements of Section 948, FDOT Standard Specifications for Road and Bridge Construction, latest
9 edition.
0 2. Perforated PVC Pipe. Polyvinyl -chloride pipe conforming to the requirements of Section 948, FDOT
1 Standard Specifications for Road and Bridge Construction, latest edition.
2 C. Exfiltration Pipe.
3 The following is a list of pipe materials acceptable for use in exfiltration systems:
4 1. Aluminum pipe perforated 360 degrees, meeting the requirements of AASHTO M-196.
5 2. Perforated Class III reinforced concrete pipe with perforations meeting the requirements of ASTM C-444.
6 3. Polyvinyl -chloride pipe perforated 360o, meeting the requirements of ASTM D-3033.
7 D. Fine Aggregate.
8 Sand filter media shall be of a quality sufficient to satisfy the following requirements:
9 1. Washed: (less than 1 % silt, clay and organic matter).
0 2. Uniformity coefficient: 1.5 or greater.
1 3. Effective grain size: 0.2-0.55 mm.
2 E. Coarse Aggregate.
3 Clean, calcium -free stone containing no friable materials and a gradation equivalent to FDOT size number 56
4 or 57. Some of the acceptable material types are as follows:
5 1. Calcium -free limestone.
6 2. River gravel.
7 3. Railroad ballast.
8 4. Blast furnace slag.
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9 F. Filter -Fabric Envelope (Sock).
0 Be a strong, porous, polyester knitted fabric. The envelope shall be a continuous one-piece material that fits
1 over the tubing like a sleeve. It shall be knitted of continuous 100-200 denier yarn and shall be free from
2 chemical treatment or coating that might significantly reduce porosity and permeability. The fabric envelope
3 shall conform to the following:
4 1. Equivalent opening size 100
5 (U.S. Standard sieve): (0.150 mm.)
6 2. Tensile strength (pounds): 50
7 3. Bursting strength (per square inch): 90-125
8 G. Filter Fabric.
9 Pervious sheet of monofilament yarn woven, knitted or bonded to form a fabric shall conform with the
0 following:
1 1. Equivalent 100
2 (U.S. Standard sieve): (0.150 mm.)
3 2. Tensile strength (pounds): 50
4 3. Bursting strength (per square inch): 200
5 4. Puncture strength (pounds): 32
6 H. Rip -Rap.
7 Riprap shall not be used as material for drainage structures and it is prohibited and unlawful to do so.
8 SECTION 8.0 DRAINAGE CALCULATION AND COMPUTATION CRITERIA
9 SECT4014 7.0 DRAINAGE CALCULATION AND COMPUTATION CRITER4A
0 All drainage calculations and computations shall be based on Tables 0-1, and 0-2 of this schedule as applicable
1 and unless otherwise determined by the Administrative Official based on sound and generally accepted
2 engineering principles and practices.
3 SECTION 9.0 EASEMENTS — GENERAL
4 SECTION 8.0 EASEMENTS GENERAL
5 Easements shall be provided for the installation of, access to and/or maintenance of public utilities and drainage
6 systems and other publicly owned or maintained improvements and facilities that are not located within public
7 street right-of-way or upon land otherwise owned, controlled or legally accessible by the responsible public entity.
8 Furthermore, easements shall be required when necessary for the functioning of the effected system, facility or
9 improvement. The City shall comply with the constitutional requirement of a rational nexus and rough
0 proportionality analysis as well as Section 70.45, Florida Statutes.
1 A. Review and Approval.
2 Required easements shall be accurately portrayed on all applicable plans or drawings. Such easements shall
3 be reviewed and approved by the City Attorney in accordance with applicable procedures set forth in this
4 Schedule and the real estate interests conveys shall be insurance consistent with generally accepted title
5 insurance standards. Unless otherwise prescribed as a condition or stipulation of approval, easements shall be
6 executed, accepted by the City, and recorded prior to issuance of development approval authorizing the
7 commencement of development.
8 B. Subdivisions.
9 Easements which are required within a platted subdivisions shall be clearly identified on the face of the plat
0 and included in the dedication as approved by the City Attorney.
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I C. Off -Site.
2 Easements shall be required when access to, maintenance of and/or utilization of off -site improvements is
3 necessary and not otherwise provided to ensure the proper functioning of the effected improvement.
4 SECTION 10.0 SITE PREPARATION, EXCAVATION, LAND CLEARING, DREDGING AND
5 FILLING
6 SECTION9 n SIT-- EXCAVATION, nION, I n r.r� CLE n PUN , D DGPn Cf 401—p
7 FILLING
8 A site development permit shall be required prior to any activity which involves digging, filling, excavating,
9 clearing, removing, placing, displacing, relocating, dumping, moving, pumping, and/or depositing any material
0 greater than 400 cubic yards in quantity, provided however, that when such activity is predicated upon a
1 foundation permit or a building permit, a site development permit for such activity will not be required. The
2 issuance of a site development permit for such activities will be based on an application submitted to and approved
3 by the Administrative Official. The following information, at a minimum, shall be submitted with said application
4 when applicable:
5 A. Scaled Drawing.
6 Depict in the proposed work, existing and proposed elevations and conditions in terms of elevations, average
7 surface/ground water level, type and quantities of materials on a scaled drawing.
8 B. Protection of Adjacent Land.
9 If activity is adjacent to lands under a different ownership than applicant, explain and illustrate methods to
0 protect adjacent owners and uses.
1 C. Protection of Environmentally Sensitive Lands.
2 If the proposed activity is to be conducted upon environmentally sensitive lands as described in Schedule M,
3 the Administrative Official may require the applicant to submit information set forth in Schedule M.
4 D. Guarantee.
5 The Administrative Official may require a bond or other type of performance guarantee to ensure that, once
6 commenced, the activity will be completed and/or the site restored in a satisfactory manner.
7 SECTION 11.0 RESIDENTIAL LOT GRADING REQUIREMENTS
8 SECTION -10.0 MSIDENTIAL LOT REQUIREMENTS
9 A. Master Drainage Plan Lot Grading.
0 Individual lots within a Master Drainage Plan shall be graded to direct stormwater runoff into the street or
I alley right-of-way or into a drainage easement or facility designed for conveyance or storage. A grading plan,
2 sufficient to verify conformance with slope requirements, shall be provided with the Master Drainage Plan
3 and included as an exhibit for individual lot development.
4 1. Finished Floor Elevation.
5 All lots that are located within a subdivision with an approved master lot drainage plan shall have a
6 finished floor elevation as follows:
7 a. Minimum of 2' above the determined 100-year flood elevation.
8 b. On all lots the finished floor elevation shall be no more than 1 / 10' below the approved design elevation
9 on the grading plan.
0 c. A sealed elevation survey performed by a Florida registered surveyor, under seal, shall be provided to
1 the Building Official at the form board stage prior to pouring the slab.
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2 d. A final sealed survey including the finished floor elevation and final grading elevations which shows
3 compliance with the approved grading plan, performed by a registered Florida surveyor, shall be
4 provided to the Building Official prior to issuance of a certificate of occupancy.
5 e. Lots that are partially or wholly within a Special Flood Hazard Area (100 Year Floodplain), as
6 identified on the most recent Flood Insurance Rate Maps, shall also provide an Elevation Certificate
7 as promulgated by the U.S. Department of Homeland Security, Federal Emergency Management
8 Agency, National Flood Insurance Program (OMB No. 1660-0008, Expiration Date: November 30,
9 2022, or latest edition) prepared and sealed by a registered Florida land surveyor to the Building
0 Official prior to issuance of a certificate of occupancy.
1 B. Infill Lot Grading.
2 The City has a number of existing subdivisions that do not have a master lot drainage plan or did not have the
3 benefit of a drainage review and approval by the City and its lots are 1/2 acre or less in size. Residential lots
4 located within these subdivisions shall be required to meet the following minimum requirements to protect
5 adjacent properties from impacts from stormwater run-off.
6 1. Grading Plan.
7 For those residential lots that are located within platted subdivisions (infill lots) that do not have a master
8 lot drainage plan or did not have the benefit of a drainage review and approval by City and that is one half
9 acre or less in size, an individual lot grading plan shall be submitted to the Building Official prior to the
0 issuance of a building permit. Such plan shall not adversely impact adjacent lands. The Administrative
1 Official may require the plan be signed and sealed by a Florida registered engineer. A topographic survey
2 (spot elevations) including sufficient portions of adjacent lots performed by a registered surveyor shall be
3 included and be the basis of the grading plan. Elevations shall be consistent with North American Vertical
4 Datum 88 datum.
5 2. Finished Floor Elevation.
6 All lots that are located within a subdivision without an approved master lot drainage plan shall have a
7 finished floor elevation as follows:
8 a. 16" above the highest adjacent crown of the road for lots with full or partial positive flow to the street
9 right-of-way.
0 b. 8" above the highest adjacent crown of the road for lots that drain away from the roadway and toward
1 a lake, stream or other water collection area.
2 c. Finished floor elevation as determined by the Health Department based upon controlling law.
3 d. 2' above the determined 100-year flood elevation.
4 e. On all lots the finished floor elevation shall be no more than 1/10' below the approved design elevation
5 on the grading plan.
6 f. A sealed elevation survey performed by a Florida registered surveyor shall be provided to the Building
7 Official at the form board stage prior to pouring the slab.
8 g. A final sealed survey including the finished floor elevation and final grading elevations which shows
9 compliance with the approved grading plan, performed by a registered Florida surveyor, shall be
0 provided to the Building Official prior to issuance of a certificate of occupancy.
1 h. Lots that are partially or wholly within a Special Flood Hazard Area (100 Year Floodplain), as
2 identified on the most recent Flood Insurance Rate Maps, shall also provide an Elevation Certificate
3 as promulgated by the U.S. Department of Homeland Security, Federal Emergency Management
4 Agency, National Flood Insurance Program (OMB No. 1660-0008, Expiration Date: November 30,
5 2022, or latest edition) prepared and sealed by a registered Florida land surveyor to the Building
6 Official prior to issuance of a certificate of occupancy.
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7
8
9
0
►J
3
4
5
6
7
8
9
0
1
2
3
4
5
6
3. Side Yards.
On all lots where the side yard setback is less than 10', stem wall construction is required. The foundation
plan shall include a detail showing the difference in elevation between the finished floor and the finished
grade. This detail shall match the required grading plan. On lots for which the side yard setback is 10' or
more, the finished floor elevation shall be no more than 1 ' above the approved design elevation unless
stem walls are used to allow side yard slope to remain 6:1 or less.
C. Grading Requirements Associated with Swimming Pool and/or Septic System Construction.
All swimming pools, including associated structures, must be located outside drainage and utility easements
and setbacks. Any proposed deviation from such criteria must be accompanied by a lot drainage plan
demonstrating no adverse drainage impact to adjacent lands. Such encroachment, if approved, may require a
vacation by the City Commission conducted through the processes of the City relative to the vacation of
easements.
D. Finished Floor Waivers.
All finished floor waivers are subject to approval by the Administrative Official. Applicants may request a
deviation from the Administrative Official prior to pad construction. Such request must be accompanied with
justification typically relating to extreme conditions of the land topography. After the fact finished floor
deviations shall not be granted for those structures that are constructed below the required elevation located
within the Special Flood Hazard Area as indicated on the current Flood Insurance Rate Maps. All
determinations shall be based upon non -economic hardships and whether the request will adversely impact
the public health, safety or welfare.
7 E. Certification.
8 At the completion of construction, all residential lots shall be certified, under seal, by a Florida registered
9 engineer as to compliance with the approved grading plan prior to issuance of a certificate of occupancy.
0-27
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0 TABLE 0-1
1 RAINFALL DEPTHS
Duration:
Frequency / Depth (in inches)
10 Year
25 Year
100 Year
5 minutes
0.7
0.8
0.9
10 minutes
1.2
1.4
1.6
15 minutes
1.6
1.8 2.1
30 minutes
2.3
2.8
3.0
60 minutes
3.0
3.4
4.0
2 hours
3.6
4.3
5.2
3 hours
4.3
4.8
5.9
6 hours
5.1
6.0
7.3
12 hours
6.3
7.2
9.0
24 hours
7.5
8.6
11.0
48 hours
8.2
10.0
12.4
72 hours
9.0
11.0
13.8
96 hours
9.8
11.9
15.2
0-28
xx/xx/xx
Ord. No. xx-xxxx
Return to
Table of Contents
TABLE 0-2
MODIFIED SCS TYPE II 24 HOUR DISTRIBUTION
1\2 Hour
Time Steps
Time (Hours)
Design Storm
Incremental
Depth (Px/P24)
Design Storm
Accumulative
Depth
1
0.5
0.0060
0.0060
2
1.0
0.0062
0.0121
3
1.5
0.0064
0.0185
4
2.0
0.0066
0.0251
5
2.5
0.0038
0.0319
6
3.0
0.0071
0.0391
7
3.5
0.0074
0.0465
8
4.0
0.0077
0.0542
9
4.5
0.0081
0.0623
10
5.0
0.0085
0.0708
11
5.5
00090
I 0.0797
12
6.0
0.0095
0.0892
13
6.5
0.0101
0.0993
14
7.0
0.0108
0.1101
15
7.5
0.0116
0.1217
16
8.0
0.0126
0.1342
17
8.5
0.0138
0.1481
18
9.0
0.0154
0.1635
19
9.5
0.0174
0.1809
20
10.0
0.0203
0.2012
21
10.5
0.0247
0.2259
22
11.0
0.0322
0.2580
23
11.5
0.0494
0.3075
24
12.0
0.2994
0.6068
25
12.5
0.1116
0.7185
26
13.0
0.0386
0.7571
27
13.5
0.0278
0.7849
28
14.0
0.0222
0.8071
29
14.5
0.0187
0.8259
30
15.0
0.0163
0.8422
31
15.5
0.0146
0.8568
32
16.0
0.0132
0.8700
33
16.5
0.0121
0.8820
34
17.0
0.0112
0.8932
35
17.5
0.0104
0.9086
36
18.0
0.0098
0.9134
37
18.5
0.0092
0.9226
38
19.0
0.0087
0.9313
39
19.5
0.0083
0.9396
40
20.0
0.0079
0.9475
41
20.5
0.0076
0.9551
42
21.0
0.0073
0.9623
43
( 21.5
0.0070
0.9693
44
22.0
0.0067
0.9760
45
22.5
0.0065
0.9825
46
23.0
0.0063
I 0.9887
47
I 23.5
0.0061
0.9948
48
24.0
0.0052
1.0000
M
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rr rll� r"" "n n
CITY OF �" (IUI� u
' SANFORD WS _ RM x
FLORIDA Item No. p-i•A
CITY COMMISSION MEMORANDUM 25-161
JULY 14, 2025, AGENDA
TO: Honorable Mayor and Members of the City Commission
PREPARED BY: Eileen Hinson, AICP, Director of Planning and
Adam Mendenhall, Planning Manager
SUBMITTED BY: Norton N. Bonaparte, Jr., ICMA-CM, City Manager
SUBJECT: Ordinance No. 2025-4827; Amending Schedule N and O, Land
Development Regulations
STRATEGIC PRIORITIES:
❑ Unify Downtown & the Waterfront
❑ Promote the City's Distinct Culture
® Update Regulatory Framework
❑ Redevelop and Revitalize Disadvantaged Communities
SYNOPSIS:
Requesting to adopt Ordinance No. 2025-4827, amending the City's Land Development
Regulations (LDRs) related to Article I through Article X.
FISCAL/STAFFING STATEMENT:
There are no anticipated costs to the City to implement the updated regulations; although the
updates may reduce development costs and improve the areas of the community where the new
regulations have been applied.
BACKGROUND:
In discussions with the Planning Engineer and the Public Works Manager, it has been
recommended that Schedule N, Subdivision Requirements, and Schedule O, Drainage, Easements,
and Site Preparation/Excavation Requirements, LDR, be updated to incorporate new materials and
emerging technologies, as well update floodplain minimal submittal requirements, to bolster the
City's infrastructure systems and floodplain resiliency.
Further, the Planning Department identified an issue in Schedule N concerning the number of
driveway access points for townhomes onto public rights -of -way. Current policy (based on design
requirements in Schedule E) requires that townhomes connect to a single private drive that
accesses the right-of-way, and this requirement needs to be codified to ensure consistent
application.
Staff accordingly requested that the City Commission invoke the provisions of Section 3.16 of the
LDRs for Zoning in Progress to make necessary modifications to the LDRs as it relates to Schedule
N and O, which was approved December 9, 2024. Zoning in progress (or legislation in progress)
is a process in which a government declares that a legislative change is needed and is implemented
while in the process of being finally developed. Proposed changes to update the LDRs as they
relate to stormwater, floodplain, townhomes, new materials and emerging technologies were being
proposed.
The summary of the modifications within these articles are as follows:
Schedule Layout Changes:
Schedule N
1. Section 1.0: Created new language that includes the Purpose and Intent for
the schedule, a statement of Lawfulness, and a statement of Best Practices.
This section applies to the entirety of the schedule.
2. Section 2.0: Created new language that provides the description of the
provisions that will be applied to streets, lots and tract designs.
3. Section 2.0.D.4: Created new language requirement for common or shared
vehicular access driveways that will be applied to all townhome
developments.
4. Section 3.0: Created new language as a lead in description for sidewalk
requirements.
5. Section 4.0: Created new language as a lead in description for easement
and other utility requirements.
6. Section 6.0: Created new language as a lead in description for access
standards and shared access requirements.
7. Section 6.0.A.5.a.5): Created new language to provide more direction on
how to accommodate the location of driveways for single family lots of
both standard and reduced sizes.
Schedule O
1. Section 1.0: Created new language that includes the Purpose and Intent for
the schedule, a statement of Lawfulness, and a statement of Best Practices.
This section applies to the entirety of the schedule.
2. Section 2.0.T: Created new language that requires all drainage
infrastructure that will be dedicated to the City to have a CCTV report
submitted to the City prior to Certificate of Completion.
3. Section 5.0.C.5: Created new language that allows a new material of pipe
to be used for public road drainage.
Staff presented Schedule N and O to the Planning and Zoning Commission on April 3, 2025.
Schedule O received a unanimous recommendation to be approved at City Commission. However,
Schedule N was postponed to the May 8, 2025 meeting to allow Planning and Zoning
Commissioners additional time to review the modifications and determine if additional changes
were warranted. Schedule N was re -presented to the Planning and Zoning Commissioners in May
with no additional changes and received a unanimous recommendation to be approved at City
Commission.
LEGAL RmEw:
The City Attorney has reviewed the matter as it was presented to the P&ZC, has prepared
Ordinance No. 2025-4827, supported those actions of the City's Planning staff, and had no legal
objection to the enactment of Ordinance No. 2025-4827.
The City Commission approved the first reading of Ordinance No. 2025-4827, on June 23, 2025.
The City Clerk published the 2nd Public Hearing of Ordinance No. 2025-4827, in the Sanford
Herald on July 9, 2025.
RECOMMENDATION:
Staff recommends that the City Commission adopt Ordinance No. 2025-4827, amending the City's
Land Development Regulations (LDRs) related to Article I through Article X.
SUGGESTED MOTION:
"I move adopt Ordinance No. 2025-4827."
Attachments: (1). Ordinance No. 2025-4827.
(2). Business Impact Estimate.
(3). Draft amendments to Schedule N and O.