Gretna Dam Reservoir Report
Last Updated: December 7, 2025
Gretna Dam, located in Pittsylvania, Virginia, is a local government-owned structure primarily used for water supply purposes.
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Summary
This earth-type dam stands at a height of 24 feet, with a storage capacity of 153 acre-feet and a surface area of 7.3 acres. The dam is situated on Georges Creek and is regulated by the Department of Conservation and Recreation in Virginia, ensuring that it meets state inspection and enforcement standards.
Despite its vital role in water supply, Gretna Dam has been assessed to be in poor condition as of September 2016, with an undetermined hazard potential. The dam's Emergency Action Plan (EAP) status, risk assessment, and management measures have not been updated, indicating a potential need for further evaluation and maintenance. With an inspection frequency of one year, it is crucial for stakeholders and enthusiasts to monitor the dam's condition and ensure that it continues to meet safety and regulatory requirements.
As a key infrastructure for water resource management in the region, Gretna Dam serves as a critical asset that requires ongoing attention and maintenance to safeguard against potential risks and ensure its continued functionality. Climate and water resource enthusiasts should stay informed about the dam's condition and regulatory oversight to support its long-term sustainability and the protection of the surrounding community and environment.
Dam Height |
24 |
River Or Stream |
GEORGES CREEK |
Primary Dam Type |
Earth |
Surface Area |
7.3 |
Hydraulic Height |
24 |
Drainage Area |
1.98 |
Nid Storage |
153 |
Structural Height |
24 |
Hazard Potential |
Undetermined |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Pigg River Near Sandy Level
|
112cfs |
Roanoke River At Altavista
|
618cfs |
Goose Creek Near Huddleston
|
56cfs |
Big Otter River Near Evington
|
101cfs |
Roanoke (Staunton) River At Brookneal
|
777cfs |
Falling River Near Naruna
|
57cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Gretna Dam