Mississippi River Lock and Dam 4
Wisconsin — Wabasha County
Location
| State | Wisconsin |
| County | Wabasha |
| Coordinates | 44.32459, -91.92266 |
Physical Characteristics
| NID Height | 42 ft |
| Dam Height | 22 ft |
| Dam Length | 7,270 ft |
| NID Storage | 878,000 acre-ft |
| Max Storage | 878,000 acre-ft |
| Surface Area | 38,820 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Not Available |
| EAP Status | — |
| Last Inspection | — |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1935 |
| Primary Purpose | Navigation |
| Dam Type | — |
| Owner Type | — |
| Owner | USACE - St. Paul District |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.