| Name official | General Zebulon Pike Lock and Dam No. 11 |
|---|---|
| Dam crosses | Upper Mississippi River |
| Res name | Pool 11 |
| Location | Dubuque, Iowa / Jamestown, Grant County, Wisconsin |
| Operator | U.S. Army Corps of Engineers, Rock Island District |
| Dam length | 1,478 ft (450 m) |
| Construction began | 1934 |
| Opening | 14 September 1937 |
| Coordinates | 42.540278°N 90.644167°W |
| Res capacity total | 170,000 acre feet |
| Res catchment | 81,600 sq mi (211,000 km2) |
| Nocat | yes |
|---|---|
| Location | 11 Lime Street, Dubuque, Iowa |
| Locmapin | Iowa#USA |
| Built | 1937 |
| Architect | Abbott, Edwin E.; multiple |
| Architecture | lock and dam |
| Added | March 10, 2004 |
| Area | 114.2 acres (46.22 ha) |
| Mpsub | Upper Mississippi River 9-Foot Navigation Project MPS |
| Refnum | 04000171[1] |
General Zebulon Pike Lock and Dam No. 11 is a lock and dam located between Dubuque, Iowa, and rural Grant County, Wisconsin, on the Upper Mississippi River.
It was opened to navigation September 14, 1937.
Description
The movable portion of the dam is 1,478 feet (450.5 m) long and consists of 13 tainter gates and three roller gates. The non-movable part is a 3,340 feet (1,018.0 m) long non-overflow earthen dam that connects to the Wisconsin shore.
The main lock is 110 feet (33.5 m) wide by 600 feet (182.9 m) long. There is also an incomplete auxiliary lock.[2]
The lock and dam are listed on the National Register of Historic Places.[1]
History
Construction the lock began in February 1934 while the dam was started to be built September 1935. They were completed August 1936 and May 1937 respectively. The system was put into operation on September 14, 1937.[3]
In December 2015, 200 coots died near the dam and O'Leary Lake.[4] In March 2018, several barges got lose and hit the dam.[5]
See also
- c. Mississippi River locks
- Upper Mississippi River National Wildlife and Fish Refuge
- Eagle Point Bridge
- Sinnipee, Wisconsin
- Public Works Administration dams dist
References
- ^
- ^ "Lock & Dam 11". U.S. Army Corps of Engineers. Archived from the original on January 6, 2014. Retrieved January 5, 2014.
- ^ "Lock and Dam 11 Mississippi River, Dubuque, Iowa". United States Army Corps of Engineers. 2022. Retrieved 2024-05-26.
- ^ Reber, Craig D. (2015-12-18). "Estimated 200 birds found dead near O'Leary's Lake". Telegraph Herald. Retrieved 2024-05-17.
- ^ "UPDATE: Barges stuck against Lock and Dam 11". KWQC-TV. 2018-05-05. Retrieved 2025-12-12.