Detention basins which will not contain a permanent pool of water shall comply with the following additional requirements:
(A) Provisions shall be incorporated to facilitate complete interior drainage of dry bottom basins. Acceptable methods include natural grades to outlet structures, longitudinal or transverse grades to perimeter drainage facilities, paved gutters, or subsurface drains. Detention basins with less than 1% gradient must be provided with subsurface drainage or paved gutters;
(B) Recreational facilities, aesthetic qualities, open space or other secondary use shall be considered in planning the detention facility; and
(C) The maximum planned depth of storm water stored without a permanent pool shall not exceed 4 feet.
(Ord. passed 10-11-2004)