Rocky Pen Run Regional Pond 2a Dam

Rocky Pen Run Regional Pond 2a Dam is an earth dam located in Stafford County, Virginia. It carries a High hazard potential classification and has a satisfactory condition assessment.

Hazard potentialHighFailure would probably cost lives
ConditionSatisfactoryBest of 4 ratings
Emergency action planOn file
Last inspection03/30/2020
Height33 ft

Dam profile

NID height · 33 ft
33 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

33 ft tall and 345 ft long, taller than 76% 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 Rocky Pen Run Regional Pond 2a Dam

The primary purpose of Rocky Pen Run Regional Pond 2a 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 Stafford County Board of Supervisors (local government). It impounds the Rocky Pen Run.

The dam stands 33 feet tall and stretches 345 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 163 acre-feet, and collects water from a drainage area of 0 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 03/30/2020.

At 33 feet, this dam is taller than 76% of dams nationwide.

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

StateVirginia
CountyStafford
River/StreamRocky Pen Run
Coordinates38.36530, -77.54180

Physical Characteristics

Dam TypeEarth
NID Height33 ft
Dam Height33 ft
Dam Length345 ft

Storage & Hydraulics

NID Storage163 acre-ft
Max Storage163 acre-ft
Normal Storage16 acre-ft
Surface Area3 acres
Drainage Area0 sq mi

Ownership & Safety

PurposeFlood Risk Reduction
OwnerStafford County Board of Supervisors
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection03/30/2020
Emergency Action PlanYes

Identifiers

NID IDVA179014
Federal IDVA179014
More InfoState Dam Safety Program