Reduction of Downstream Impacts Through Use of Variable Detention Basin Volume Requirementsby Conor C. Shea, (M.ASCE),
Abstract: The Pre-post Match is the standard policy for regulating the design of detention basins for new developments despite evidence showing that as multiple developments occur in a watershed, increases in flood peaks and stream erosion are generated by increased stormflow volume. Several alternative policies for regulating the design of detention basins are presented that prevent downstream impacts through use of variable volume requirements tailored to the locations of individual development sites within a drainage basin. The methods are compared in terms of practicality, effectiveness, and cost efficiency.
Subject Headings: Detention basins | Drainage basins | Hydraulic design | Retention basins | Watersheds | Floods | River bank stabilization
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