O'Brien North
Minnesota, Itasca County, O'Brien Creek
Location
| State | Minnesota |
| County | Itasca |
| River | O'Brien Creek |
| Coordinates | 47.37959, -93.13380 |
Physical Characteristics
| NID Height | 58 ft |
| Dam Height | 49 ft |
| Dam Length | 1,000 ft |
| NID Storage | 2,550 acre-ft |
| Max Storage | 2,550 acre-ft |
| Surface Area | - |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Satisfactory |
| EAP Status | Not Required |
| Last Inspection | October 4, 2022 |
| Inspection Frequency | 4 |
Dam Information
| Year Completed | 1972 |
| Primary Purpose | Tailings |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | US Steel |
| Other Name | Reservoir 4 |
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.