Direct Sizing of Small Stormwater Pump Stations

by David C. Froehlich, (M.ASCE),

Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water


Pump stations are components of stormwater drainage systems that remove collected storm runoff from locations where drainage by gravity is not feasible. Usually pump stations will operate infrequently. Therefore, a substantial capital investment will be idle for long periods between storms. However, needed pump capacity can be reduced significantly if runoff is stored temporarily before it is pumped from the basin. Therefore, the initial cost of the station plus maintenance and operating expenses can be reduced if runoff storage can be obtained at a small enough cost.

Subject Headings: Pumping stations | Stormwater management | Runoff | Drainage systems | Storms | Energy storage | Benefit cost ratios

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