Lock and Dam No. 5A
Lock and Dam No. 5A is a lock and dam located near Fountain City, Wisconsin and Goodview, Minnesota on the Upper Mississippi River around river mile 728.5.
| Lock and Dam No. 5A | |
|---|---|
 Lock and Dam 5A, Upper Mississippi River. View is upriver to the northwest. | |
  Location of Lock and Dam No. 5A in Wisconsin | |
| Location | Buffalo County, Wisconsin / Winona County, Minnesota, United States. Near Fountain City, Wisconsin. |
| Coordinates | 44.085119°N 91.673698°W |
| Construction began | 1932 |
| Opening date | June 1936 |
| Operator(s) |  |
| Dam and spillways | |
| Impounds | Upper Mississippi River |
| Length | 682 feet (207.9 m)(movable portion) |
| Reservoir | |
| Creates | Pool 5A |
| Total capacity | 39,600 acre⋅ft (0.0488 km3) |
| Catchment area | 59,105 sq mi (153,080 km2) |
Construction
It was constructed in 1932, placed in operation in 1936. Its last major rehabilitation was from 1989 through 2000.
Description
The dam consists of a concrete structure 682 feet (207.9 m) long with five roller gates and five tainter gates with an earth embankment 22,000 feet (6,705.6 m) long. Its concrete overflow spillway is 1,000 feet (304.8 m) long and its lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long.
Ownership
The lock and dam are owned and operated by the St. Paul District of the United States Army Corps of Engineers-Mississippi Valley Division.
 Lock and Dam No. 5A |
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See also
References
External links
- U.S. Army Corps of Engineers, St. Paul District: Lock and Dam 5A
- U.S. Army Corps of Engineers, St. Paul District: Lock and Dam 5A brochure
- Survey number HAER MN-23 - Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5A, Winona vicinity, Winona County, MN
| List of locks and dams of the Upper Mississippi River | ||
|---|---|---|
| Upstream: Lock and Dam No. 5 |
Downstream: Lock and Dam No. 6 | |
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