Optimal Sizing of Urban Flood-Control Systems

by Darryl W. Davis, (M.ASCE), Chf.; Planning Analysis Branch, Hydrologic Engrg. Center, Corps of Engrs., Davis, Calif.,


Serial Information: Journal of the Hydraulics Division, 1975, Vol. 101, Issue 8, Pg. 1077-1092


Document Type: Journal Paper

Abstract: Optimal sizes for components of urban flood-control systems can be determined from a detailed simulation analysis controlled by an optimization methodology. Flood-control measures within urban areas frequently consist of complex systems of detention storage reservoirs, channel modifications, levees, land-use controls, flood proofing, and pumping facilities. The optimal size of each of these system components depends on the system interaction with other components and the hydrologic, economic, environmental, and other performance outputs of the system. A technique has been developed and programmed for an existing simulation model that automatically determines the sizes of urban flood-control components of detention storage, flow diversions, and pumping plants that results in maximizing system net benefits subject to accomplishment of hydrologic performance targets. The system is simulated using hydrologic data, component cost and performance functions, and flow damage information at damage centers.

Subject Headings: Floods | Flow simulation | Urban areas | Water storage | Waste storage | Hydrologic models | Pumping stations | Hydrologic data

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