Horsepen Dam
Virginia, Loudoun County, Horsepen Run
Location
| State | Virginia |
| County | Loudoun |
| River | Horsepen Run |
| Coordinates | 38.98950, -77.46520 |
Physical Characteristics
| NID Height | 50 ft |
| Dam Height | 50 ft |
| Dam Length | 600 ft |
| NID Storage | 15,200 acre-ft |
| Max Storage | 15,200 acre-ft |
| Surface Area | 18 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Fair |
| EAP Status | Yes |
| Last Inspection | March 11, 2025 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | - |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | State |
| Owner | Metropolitan Washington Airports Authority |
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.