Urban Storm Runoff Model

by Edward W. Rovey, (A.M.ASCE), Hydrologist; CH2M Hill, St. Louis, Mo.; formerly, Grad. Research Asst., Colorado State Univ., Fort Collins, Colo.,
David A. Woolhiser, (M.ASCE), Supervisory Research Hydr. Engr.; U.S. Dept. of Agriculture — Agr. Research Service, Fort Collins, Colo.,

Serial Information: Journal of the Hydraulics Division, 1977, Vol. 103, Issue 11, Pg. 1339-1351

Document Type: Journal Paper


A surface flow routing model based upon a kinematic cascade of planes and channels is combined with a parametric infiltration model to constitute a watershed model. The kinematic approximation is used to route flows through storm drains of trapezoidal or circular cross section. Model parameters are estimated from the hydraulic characteristics of the surface and soils. A Chezy friction relationship is used to model surface flow resistance. The predictive ability of the watershed model is tested by simulating runoff hydrographs from a 67-ha urban watershed near Denver, Colorado.

Subject Headings: Hydraulic models | Terrain models | Overland flow | Watersheds | Urban areas | Storms | Runoff | Hydrologic models | Colorado | United States | Denver

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