Twin Lakes Dam # 1 Reservoir Report
Last Updated: December 5, 2025
Twin Lakes Dam # 1, also known as Top Lake or Lake Greene, is a private dam located in Greene, Virginia.
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Summary
Managed by the Department of Conservation and Recreation, this dam is regulated and inspected by the state to ensure its safety and compliance with regulations. With a primary purpose of recreation, this earth dam stands at a height of 32 feet and has a length of 500 feet, creating a reservoir with a storage capacity of 460 acre-feet.
Situated on Deep Run, Twin Lakes Dam # 1 offers a surface area of 6 acres and drains an area of 1.72 square miles. Despite being rated as having a high hazard potential, the dam's condition assessment has not been rated, with the last inspection conducted in June 2016. While the dam's emergency action plan status is unclear, it is essential for the dam's owners to ensure that it meets guidelines and has updated emergency contacts in case of any potential risks or incidents.
With its picturesque location and recreational opportunities, Twin Lakes Dam # 1 serves as a vital water resource in Greene, Virginia. Enthusiasts of water resources and climate will appreciate the importance of maintaining and monitoring the safety of this dam to ensure the protection of the surrounding area and its inhabitants. As climate change continues to impact water resources, the proper management and maintenance of dams like Twin Lakes Dam # 1 are crucial for the resilience of communities and ecosystems in the face of changing environmental conditions.
Dam Length |
500 |
Dam Height |
32 |
River Or Stream |
Deep Run |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
32 |
Drainage Area |
1.72 |
Nid Storage |
460 |
Structural Height |
32 |
Hazard Potential |
High |
Nid Height |
32 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Twin Lakes Dam # 1