Moorefield Station West Swm Pond Dam Reservoir Report

Last Updated: December 5, 2025

Moorefield Station West Swm Pond Dam in Loudoun, Virginia, is a privately owned structure regulated by the Department of Conservation and Recreation.


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Summary

This dam, designed by the Claude Moore Charitable Foundation, stands at a height of 14.4 feet and has a storage capacity of 95.6 acre-feet. Situated on a tributary to Broad Run, this dam serves a critical role in managing water resources in the area, with a normal storage capacity of 19.6 acre-feet and a surface area of 3.8 acres.

Despite its satisfactory condition assessment as of June 2017, the Moorefield Station West Swm Pond Dam is classified as having a high hazard potential, indicating the importance of regular inspections and maintenance. The dam has a maximum discharge capacity of 1965 cubic feet per second, highlighting its significance in flood control and water management. While the dam's emergency action plan status and risk assessment details are not specified, its critical role in the local water infrastructure is evident.

Owned by a private entity, this dam plays a crucial role in protecting the surrounding area from potential inundation and providing vital water storage capabilities. With its strategic location and design, the Moorefield Station West Swm Pond Dam stands as a testament to the collaborative efforts between private owners and state regulatory agencies in ensuring the safety and effectiveness of water resource management in Virginia.

Dam Length

200

Dam Height

14.4

River Or Stream

Tributary D to Broad Run

Surface Area

3.8

Nid Storage

95.6

Structural Height

14.4

Hazard Potential

High

Nid Height

14
       
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.