| Lock and Dam No. 8 | |
|---|---|
Mississippi River Lock and Dam number 8. |
|
| Location | Houston County, Minnesota / Vernon County, Wisconsin, near Genoa, Wisconsin, USA |
| Construction began | 1933 |
| Opening date | April 1937 |
| Dam and spillways | |
| Impounds | Upper Mississippi River |
| Reservoir | |
| Creates | Pool 8 |
Lock and Dam No. 8 is a lock and dam located near Genoa, Wisconsin on the Upper Mississippi River near river mile 679.2. It was constructed and put into operation by April 1937. The site underwent major rehabilitation from 1989 through 2003.
The dam consists of a concrete structure 934 feet (284.7 m) long with five roller gates and 10 tainter gates. The earth embankment is 17,500 feet (5,334.0 m) long with two submersible spillways, 938 feet (285.9 m) long and 1,338 feet (407.8 m) long. The lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long.
| Locks and dams of the Upper Mississippi River | |
|---|---|
| USAF • LSAF • 1 • 2 • 3 • 4 • 5 • 5A • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 24 • 25 • 26 • 27 | |
| Upstream: Lock and Dam No. 7 |
Downstream: Lock and Dam No. 9 |