Gregory Dam Reservoir Report
Nearby: Atkinson Dam Elkhorn Dam
Last Updated: December 22, 2025
Located in Pittsylvania, Virginia, Gregory Dam is a privately owned structure that serves multiple purposes, including recreation and irrigation.
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Summary
Managed by the Department of Conservation and Recreation, this earth dam stands at a height of 28 feet, providing storage capacity of 64 acre-feet. The dam is situated on the TR-JOHNS RUN river/stream and is regulated by the state with regular inspections and enforcement measures in place.
With a primary purpose of recreation, Gregory Dam offers a tranquil setting for water resource and climate enthusiasts to enjoy. While the hazard potential and condition assessment are currently undetermined and not rated, respectively, the dam remains a key feature in the region's water management infrastructure. Despite lacking certain details such as the year of completion and dam length, Gregory Dam continues to play a vital role in providing water storage and recreational opportunities for the local community.
As a part of the Wilmington District, Gregory Dam enhances the natural landscape of Virginia and contributes to the overall water resource management efforts in the area. Whether used for irrigation or leisure activities, this privately owned structure stands as a testament to the importance of sustainable water management practices in the face of climate change. With a focus on safety and regulatory compliance, Gregory Dam exemplifies the balance between human needs and environmental stewardship in water resource management.
Dam Height |
28 |
River Or Stream |
TR-JOHNS RUN |
Primary Dam Type |
Earth |
Hydraulic Height |
28 |
Nid Storage |
64 |
Structural Height |
28 |
Hazard Potential |
Undetermined |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dan River At Paces
|
1490cfs |
Banister River At Halifax
|
217cfs |
Dan River At South Boston
|
1480cfs |
Dan River At Stp Near Danville
|
1250cfs |
Sandy River Near Danville
|
47cfs |
Pigg River Near Sandy Level
|
239cfs |
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.
Gregory Dam