Black River Imp
Black River Imp is an earth dam located in Pennington County, Minnesota, built in 2022. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Black River Imp
The primary purpose of Black River Imp is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Wd Of Red Lake (local government).
The dam stands 14 feet tall, has a maximum storage capacity of 6,000 acre-feet, and collects water from a drainage area of 16 square miles. Completed in 2022, the structure is relatively new.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/10/2022.
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Location
| State | Minnesota |
| County | Pennington |
| Coordinates | 48.00694, -96.42238 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Year Completed | 2022 (4 years old) |
Storage & Hydraulics
| NID Storage | 6,000 acre-ft |
| Max Storage | 6,000 acre-ft |
| Drainage Area | 16 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | WD of Red Lake |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/10/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01812 |
| Federal ID | MN01812 |
| More Info | State Dam Safety Program |