Potomac Lake Dam is an earth dam located in Loudoun County, Virginia. It carries a Undetermined hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 280 ft long, taller than 50% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Potomac Lake Dam
The primary purpose of Potomac Lake Dam 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 Vdot;westlake Commercial Owners Association (private).
The dam stands 25 feet tall and stretches 280 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 149 acre-feet, and collects water from a drainage area of 0 square miles.
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Location
| State | Virginia |
| County | Loudoun |
| Coordinates | 39.03520, -77.40560 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 280 ft |
Storage & Hydraulics
| NID Storage | 149 acre-ft |
| Max Storage | 149 acre-ft |
| Normal Storage | 58 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Vdot;westlake Commercial Owners Association |
| Owner Type | Private |
| Hazard Classification | Undetermined |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | VA107044 |
| Federal ID | VA107044 |
| More Info | State Dam Safety Program |