Mississippi River Lock And Dam 12
Significant HazardNot Available ConditionEmergency Action Plan: Yes
Location
| State | Iowa |
| County | Jo Daviess |
| Nearest City | BELLEVUE |
| River/Stream | MISSISSIPPI RIVER |
| Coordinates | 42.26124, -90.42116 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 44 ft |
| Dam Length | 8,577 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 92,000 acre-ft |
| Max Storage | 92,000 acre-ft |
| Surface Area | 10,500 acres |
| Drainage Area | 82,400 sq mi |
| Max Discharge | 32,700 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Navigation |
| Owner | USACE - Rock Island District |
| Owner Type | Federal |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 04/09/2024 |
| Emergency Action Plan | Yes |