Lake Mooney Dam is an earth dam located in Stafford County, Virginia. It carries a High hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 130 ft130 ft tall and 1,350 ft long, taller than 98% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Lake Mooney Dam
The primary purpose of Lake Mooney Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Stafford County - County Administrator (local government). It impounds the Rocky Pen Run.
The dam stands 130 feet tall and stretches 1,350 feet across, creates a reservoir covering 518 acres, has a maximum storage capacity of 21,100 acre-feet, and collects water from a drainage area of 5 square miles.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 09/24/2020.
At 130 feet, this dam is taller than 98% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Virginia dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Virginia |
| County | Stafford |
| River/Stream | Rocky Pen Run |
| Coordinates | 38.33510, -77.54930 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 130 ft |
| Dam Height | 130 ft |
| Dam Length | 1,350 ft |
Storage & Hydraulics
| NID Storage | 21,100 acre-ft |
| Max Storage | 21,100 acre-ft |
| Normal Storage | 16,200 acre-ft |
| Surface Area | 518 acres |
| Drainage Area | 5 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Stafford County - County Administrator |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/24/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | VA179024 |
| Federal ID | VA179024 |
| More Info | State Dam Safety Program |