A Dual Level Methodology for Stormwater Detention Basin Design

by Donald V. Chase, Univ of Kentucky, Lexington, United States,
Lindell E. Ormsbee, Univ of Kentucky, Lexington, United States,

Document Type: Proceeding Paper

Part of: Water Resources Planning and Management: Saving a Threatened Resource?In Search of Solutions


A dual level design methodology for designing detention basins has been developed in an effort to standardize detention basin design and expedite the design/review process. The methodology utilizes a dual level design approach. The first level involves use of nomographs to determine the dischage and volumetric requirements of a detention facility to meet the drainage specifications set forth by a municipality. The second level of the methodology involves using the values of design discharge and maximum storage obtained from the nomographs along with a computer program to design the outlet works of the associated structure. The developed methodology provides both a uniform and a streamlined process for the design of stormwater detention basins for small urban watersheds where more comprehensive methodologies may not be cost effective or readily available.

Subject Headings: Detention basins | Stormwater management | Retention basins | Watersheds | Urban areas | Urban and regional development | Runoff

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