Rocky Pen Run #4a
Rocky Pen Run #4a is an earth dam located in Stafford County, Virginia. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Rocky Pen Run #4a
The primary purpose of Rocky Pen Run #4a 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. It impounds the Rocky Pen Run.
The dam stands 27 feet tall and stretches 220 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 128 acre-feet, and collects water from a drainage area of 0 square miles.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. 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 09/20/2019.
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Location
| State | Virginia |
| County | Stafford |
| River/Stream | Rocky Pen Run |
| Coordinates | 38.35960, -77.53560 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 220 ft |
Storage & Hydraulics
| NID Storage | 128 acre-ft |
| Max Storage | 128 acre-ft |
| Normal Storage | 34 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner Type | Not Listed |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/20/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | VA179013 |
| Federal ID | VA179013 |
| More Info | State Dam Safety Program |