South Twin Lake Dam
Virginia — Fairfax County — Moore Creek
Location
| State | Virginia |
| County | Fairfax |
| River | Moore Creek |
| Coordinates | 38.81590, -77.40510 |
Physical Characteristics
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 520 ft |
| NID Storage | 118 acre-ft |
| Max Storage | 118 acre-ft |
| Surface Area | — |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | April 28, 2022 |
| Inspection Frequency | 3 |
Dam Information
| Year Completed | — |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | Fairfax County Park Authority;Fairfax County Park Authority |
| Other Name | Wp0250 Msmd Id By Fairfax County |
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.