Laurel Hill Lake Dam Reservoir Report

Last Updated: December 5, 2025

Laurel Hill Lake Dam, located in Fairfax, Virginia, is a local government-owned structure that serves multiple purposes, including irrigation and recreation.


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Summary

This earth dam stands at a height of 25.3 feet and has a storage capacity of 77.14 acre-feet, with a normal storage level of 36.17 acre-feet. The dam is situated on the Giles Run tributary and is regulated by the Department of Conservation and Recreation in Virginia.

Despite its relatively small size, Laurel Hill Lake Dam plays a crucial role in providing water resources for irrigation in the area. The dam has not been assessed for its condition but is deemed to have an undetermined hazard potential. The dam does not fall under the jurisdiction of the US Army Corps of Engineers, and its emergency action plan status remains unknown. As a focal point for water resource and climate enthusiasts, Laurel Hill Lake Dam offers a glimpse into the intersection of human infrastructure and environmental conservation in the region.

Dam Length

330

Dam Height

25.3

River Or Stream

Giles Run tributary

Primary Dam Type

Earth

Surface Area

4.76

Hydraulic Height

25.3

Nid Storage

77.14

Structural Height

25.3

Hazard Potential

Undetermined

Nid Height

25
       
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.