Retrofitting a Regional Stormwater Facilityby Richard L. Schaefer, Brown and Caldwell Consulting, Engineers, United States,
Paul A. Bucich, Brown and Caldwell Consulting, Engineers, United States,
Abstract: The City of Tacoma, Washington, constructed a regional stormwater detention facility in the Leach Creek watershed in 1961 to permit development in the southwest corner of the City while controlling the rate of discharge into the stream. However, as the watershed urbanized, the ability of the detention facility to attenuate peak storm flows has been reduced. In 1984, the City and other tributary jurisdictions lost a lawsuit for erosion damages from excessive flows in a downstream reach of Leach Creek located in unincorporated Pierce County. The City is developing a project to enhance the performance of the regional facility in controlling releases to Leach Creek.
Subject Headings: Stormwater management | Watersheds | Rivers and streams | Rehabilitation | Urban areas | Municipal water | Permits | Water discharge | Storms | Washington | North America | United States | Tacoma
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