Model for Optimal Size and Location of Detention

by Larry W. Mays, (M.ASCE), Assoc. Prof.; Dept. of Civ. Engrg., Univ. of Texas, Austin, Tex. 78712,
Phillip B. Bedient, (A.M.ASCE), Assoc. Prof.; Dept. of Environmental Science and Engrg., Rice Univ., Houston, Tex. 77001,

Serial Information: Journal of the Water Resources Planning and Management Division, 1982, Vol. 108, Issue 3, Pg. 270-285

Document Type: Journal Paper


An optimization model has been developed for determining the minimum cost, size, and location of detention basins for urban watersheds. This model is based on dynamic programming and can handle any arbitrary arrangement of candidate detention basin locations and sizes. The detention system representation uses the concept of iso-drainage lines. Flood routing procedures for channel routing and detention basin routing are incorporated into the dynamic programing model. An example application is given for illustration of the model.

Subject Headings: Optimization models | Flood routing | Hydrologic models | Detention basins | Dynamic models | Municipal water | Urban areas | Watersheds

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