Opening date May 1935 Opened May 1935 Construction began 1932 | Creates Pool 4 Catchment area 147,888 km² Impound Upper Mississippi River | |
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Location Greenfield Township, Wabasha County, Minnesota / Alma, Wisconsin, USA Impounds Upper Mississippi River Length 1,367 feet (416.7 m) (movable portion) Total capacity 878,000 acre·ft (1.083 km) Operator United States Army Corps of Engineers Similar Lock and Dam No 5, Lock and Dam No 3, Lock and Dam No 6, Lock and Dam No 5A, Lock and Dam No 7 | ||
Lock and Dam No. 4 is a lock and dam located near Alma, Wisconsin and Kellogg, Minnesota on the Upper Mississippi River around river mile 752.8.
Contents
Map of Lock and Dam No. 4, Alma, WI 54610, USA
History
The lock and dam was constructed and placed in operation in May 1935. There were ten major injuries and three deaths recorded during construction of the facility. Its last major rehabilitation was from 1988 to 1994.
References
Lock and Dam No. 4 Wikipedia(Text) CC BY-SA