Trump Nat'l Golf Club Interconnected Impoundments #4 Reservoir Report

Last Updated: December 5, 2025

Trump National Golf Club's interconnected impoundments #4, 5, & X in Loudoun, Virginia, play a vital role in providing irrigation water for the lush greens of the prestigious golf course.


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Summary

These private earth dams, with a height of 13 feet and a storage capacity of 201 acre-feet, also serve the primary purpose of recreation. The impoundments are regulated by the Department of Conservation and Recreation, ensuring that they meet state permitting, inspection, and enforcement requirements.

Situated along the Old Sugarland Run, the impoundments cover a surface area of 22.6 acres and have a normal storage capacity of 23.7 acre-feet. While their hazard potential is currently undetermined, the condition assessment remains unrated. The inspection frequency is set at one, indicating a commitment to maintaining the structural integrity of the dams. The interconnected impoundments stand as a testament to the harmonious coexistence of water resources and recreational amenities in the heart of Virginia's picturesque landscape.

With a designer name unspecified and a completion year unknown, these interconnected impoundments embody a blend of functionality and natural beauty. The Trump National Golf Club's commitment to water resource management is underscored by the presence of these earth dams, which contribute to the sustainability of the golf course while enhancing the overall recreational experience for visitors. As they continue to be regulated and inspected by state authorities, these impoundments serve as a model for responsible water stewardship in the face of climate change challenges.

Dam Length

2526

Dam Height

13

River Or Stream

Old Sugarland Run

Primary Dam Type

Earth

Surface Area

22.6

Hydraulic Height

13

Nid Storage

201

Structural Height

13

Hazard Potential

Undetermined

Nid Height

13
       
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.