§ 74-353. Drainage facilities.

(a)

A complete system shall be provided for draining the roads, streets, alleys and other publicly owned areas in the subdivision and for handling drainage runoff from the platted areas that come into or across the subdivision from the outside and confine it to areas designated and prepared for this purpose. Care will be taken not to permit storm drainage to encroach upon surrounding property. Plans shall be subject to approval by the planning commission. The planning commission may recommend and the board may require a primary underground system to accommodate frequent floods and a secondary surface system to accommodate less frequent floods. Drainage plans shall be consistent with local and regional drainage plans.

(b)

Minimum ditch grade shall be 0.003 feet per foot (0.3 foot per 100 feet). Drainage easements shall have a minimum width of 30 feet. A minimum berm width of ten feet from the fence or edge of the water retention area to the edge of the excavation and with a ten-foot radius at all corners must be allowed, to provide access for maintenance. Berms and slopes must be mulched and seeded, or sodded. All culverts placed under roadways shall meet DOT standard specifications, or as approved by the county engineer. All water entrances, ditches, berms, slopes and culverts shall be constructed or installed in accordance with DOT standard specifications, or as approved by the county engineer.

(c)

Drainage retention areas shall conform to the requirements in 40C-42.025 F.A.C. with minimum requirements that normally dry basins designed to impound more than two feet of water or permanently wet basins or basins that contain side slopes that are steeper than 4:1 (horizontal: vertical) out to depth of two feet below the control elevation shall be fenced or otherwise restricted from public access.

(Ord. No. 2013-06, § 1, 9-10-2013; Ord. No. 17-08, 9-26-2017)