Patterson Creek No. 4 Dam
West Virginia — Grant County — MIDDLE FORK
Location
| State | West Virginia |
| County | Grant |
| River | MIDDLE FORK |
| Coordinates | 39.17806, -79.07889 |
Physical Characteristics
| NID Height | 79 ft |
| Dam Height | 79 ft |
| Dam Length | 692 ft |
| NID Storage | 2,101 acre-ft |
| Max Storage | 2,101 acre-ft |
| Surface Area | 8 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Fair |
| EAP Status | Yes |
| Last Inspection | September 30, 2025 |
| Inspection Frequency | 2 |
Dam Information
| Year Completed | 1966 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | Potomac Valley CD |
| Other Name | Middle Fork |
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.