Gnegy Dam Reservoir Report

Last Updated: December 6, 2025

Gnegy Dam, located in Cumberland, Virginia, is a recreational earth dam standing at 20 feet in height with a storage capacity of 101 acre-feet.


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Summary

Although the exact completion year is not specified, the dam is currently under state regulation by the Department of Conservation and Recreation. The primary purpose of Gnegy Dam is for recreation, providing opportunities for outdoor enthusiasts to enjoy activities like fishing, boating, and picnicking.

The dam's hazard potential is classified as undetermined, with a condition assessment that is not rated. It has an inspection frequency of 1 and emergency action plan (EAP) status is not provided. The risk assessment, management measures, and other risk-related details are also not available. Despite these uncertainties, Gnegy Dam remains a vital resource for the community, offering a serene environment for people to connect with nature and engage in various water-based activities.

As a part of the Norfolk District, Gnegy Dam serves as a testament to the importance of responsible water resource management and climate resilience. With its picturesque location and recreational offerings, the dam stands as a beacon for water enthusiasts seeking a peaceful retreat amidst the natural beauty of Virginia's countryside.

Dam Height

20

Hydraulic Height

20

Nid Storage

101

Structural Height

20

Hazard Potential

Undetermined

Nid Height

20
       
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.