Hydraulic Study Requirements for Bulb Type Hydropower Units at a Navigation Lock and Dam

by Charles W. Denzel, US Army Corps of Engineers, Hydraulic Design Section, St. Louis, MO, USA,

Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age


A replacement Lock and Dam at Alton, Illinois on the Mississippi River is presently under construction. This paper presents the results of studies performed for adding six bulb type hydropower units in a section of the overflow dike. The units are capable of generating 114 MW and will operate under heads ranging from eight to 22-feet. Since a portion of the overflow dike is to be used for the power plant the effective dike length for passing flow is reduced. Studies are presented showing the impact of increased swellhead because of the reduced dike length. Results of studies for swellhead navigation are presented.

Subject Headings: Locks (dam) | Hydraulics | Hydro power | Navigation (waterway) | Locks (waterway) | Navigation dams | Overflow | Power plants | Mississippi River | Illinois | United States

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