For all developments, channels and ditches shall be capable of conveying the ten-year storm flow within their banks. Through drainage structures or main flood control channels, such as detention basins, shall be designed to collect and transport the post-development rate of runoff for the 100-year storm. In all cases, the 100-year discharge elevation must be checked to ensure that adjacent structures do not suffer flood damage.
(Ord. 012-118, passed 10-8-2012)