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ORDINANCE NO. 91-48 Section -46 Section_ 930_._47_(1�_ti1l_of the-Stormwater Management and Floodplain Protection chapter of the LDRs is hereby amended to read as follows: [(i) Material Specifications for Culverts and Storm Sewers. The following pipe materials are acceptable:] 1. Reinforced concrete pipe, bituminous coated corrugated steel pipe, aluminum pipe, aluminum pipe arch, bituminous coated-structura3Jplate-stee-1-pipe, and -bituminous -coated steel pipe arch. Other pipe materials may be used, if approved for the intended use by the Florida Department of Transportation. Minimum diameter of single family residential driveway culverts shall be 12" or its cross- sectional equivalent. Section 47: Section 930.07(1)(m) of the Stormwater Management and Floodplain Protection chapter of the land development regulations is hereby amended to read as follows: (m) All stormwater facilities shall be established in dedicated stormwater management tracts, easements or specified common areas. Condominium documents, deed restrictions, or other legally binding instruments shall describe the location of such areas, specifically define the mechanism for preservation and -maintenance- o f -any -private dra-i-nage-systems-,-and-shall appoint an entity responsible for maintenance and preservation. All stormwater management tracts (not including swales) shall include a maintenance area, with a slope not steeper than 8 foot horizontal to 1 foot vertical and a minimum of 15 feet wide, completely around and outside the area submerged by the design stormwater elevation and connecting with an ingress - egress easement, or public right-of-way, a minimum of 15 feet wide, for access if lots or tracts are to be under separate ownership. Common areas properly dedicated for access and maintenance of drainage facilities will meet this requirement if an owner's association is properly established. Open channels and swales, shall = be located within an easement with a minimum 15 foot width for access and maintenance for single family residential developments. For single family residential development, -retention and 4etenticn facilities above and below the designed high water elevation shall be graded to slopes not steeper than 4 foot horizontal to 1 foot vertical, or a properly designed retaining wall shall be used. On all other developments maximum slopes will be 2 horizontal to 1 vertical for swales less than or equal to 1 foot deep and 3 horizontal to 1 vertical for all swales more than 1 foot deep. Dry retention slopes and wet retention slopes above the design low water elevation shall be grassed or otherwise stabilized. Mention or det—ention ponds with any area having more than two feet of water at design storm or permanent pool with the exception of ponds, or lakes, in golf courses, public parks or in developments in which the pond, or lake is designed to serve as an aesthetic amenity to the development, shall be fenced with a minimum 4 foot high fence. Section 48: Section 9-30.05(3) of the Stormwater Management and Flood Protection chapter of the land development regulations is hereby established and shall read as follows: Coding: Words in . -. • type are deletions from existing law. Words underlined are additions. 43 SmeadSoft Reprint Date: Friday, August 23, 2013 - 12:40:25 - OffcialDocuments:646, Attachment Id 0, Page 43