| Lock and Dam No. 11 | |
|---|---|
 Lock and Dam No. 11 as seen from a drone. | |
| Official name | General Zebulon Pike Lock and Dam No. 11 |
| Location | Dubuque, Iowa / Jamestown, Grant County, Wisconsin |
| Coordinates | 42°32′25″N 90°38′39″W / 42.540278°N 90.644167°W |
| Construction began | 1934 |
| Opening date | 14 September 1937 |
| Operator(s) |  U.S. Army Corps of Engineers, Rock Island District |
| Dam and spillways | |
| Impounds | Upper Mississippi River |
| Length | 1,478 ft (450 m) |
| Reservoir | |
| Creates | Pool 11 |
| Total capacity | 170,000 acre⋅ft (0.21 km3) |
| Catchment area | 81,600 sq mi (211,000 km2) |
Lock and Dam No. 11 Historic District | |
   | |
| Location | 11 Lime Street, Dubuque, Iowa |
| Area | 114.2 acres (46.22 ha) |
| Built | 1937 |
| Architect | Abbott, Edwin E.; multiple |
| Architectural style | lock and dam |
| MPS | Upper Mississippi River 9-Foot Navigation Project MPS |
| NRHP reference No. | 04000171[1] |
| Added to NRHP | March 10, 2004 |
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.