Rocky Pen Run Regional Pond 2a Dam Reservoir Report

Last Updated: December 5, 2025

Rocky Pen Run Regional Pond 2a Dam is a vital structure located in Stafford, Virginia, designed for flood risk reduction in the region.


°F

°F

mph

Wind

%

Humidity

Summary

Managed by the local government and regulated by the Department of Conservation and Recreation, this earth dam stands at a height of 32.6 feet, with a storage capacity of 163 acre-feet and a surface area of 3.97 acres. The dam plays a crucial role in protecting the area from potential flooding events, ensuring the safety and well-being of nearby residents.

Situated on Rocky Pen Run, this dam not only serves the primary purpose of flood risk reduction but also contributes to water supply management in the region. With a hazard potential rated as high, regular inspections are carried out to ensure the structural integrity and safety of the dam. The condition assessment in March 2020 deemed it satisfactory, highlighting its reliability in mitigating flood risks. The dam's strategic location and design make it an essential asset in the area's water resource and climate resilience efforts.

Rocky Pen Run Regional Pond 2a Dam stands as a testament to effective water resource management, combining functionality with environmental stewardship. As a key infrastructure for flood risk reduction and water supply, this earth dam plays a crucial role in safeguarding the community against natural disasters. With a satisfactory condition assessment and high hazard potential, continued monitoring and maintenance are essential to ensure the long-term effectiveness and resilience of this important structure in Stafford, Virginia.

Dam Length

345

Dam Height

32.6

River Or Stream

Rocky Pen Run

Primary Dam Type

Earth

Surface Area

3.97

Hydraulic Height

32.6

Drainage Area

0.33

Nid Storage

163

Structural Height

32.6

Hazard Potential

High

Nid Height

33
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.