Upper Tanyard Run Dam Reservoir Report
Nearby: Coleman Pond Dam Orrock Lane Dam
Last Updated: December 6, 2025
Upper Tanyard Run Dam is a private structure located in Caroline, Virginia, with a primary purpose of serving as a Fish and Wildlife Pond.
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Summary
The dam, constructed with Earth as the primary dam type, stands at a height of 13 feet and stretches 300 feet in length. With a storage capacity of 57 acre-feet, it helps regulate the flow of the Tanyard Run river while creating a surface area of 5.4 acres for aquatic habitat.
Managed by the Department of Conservation and Recreation in Virginia, Upper Tanyard Run Dam is state-regulated and undergoes regular inspections to ensure its safety and functionality. The dam's hazard potential is currently listed as Undetermined, with a condition assessment of Not Rated. While it has not been rated for risk management measures or emergency action plans, its presence contributes to the conservation and management of fish and wildlife resources in the area, making it a valuable asset for water resource and climate enthusiasts to study and monitor for environmental impact.
Dam Length |
300 |
Dam Height |
13 |
River Or Stream |
Tanyard Run |
Primary Dam Type |
Earth |
Surface Area |
5.4 |
Hydraulic Height |
13 |
Nid Storage |
57 |
Structural Height |
13 |
Hazard Potential |
Undetermined |
Nid Height |
13 |
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.
Upper Tanyard Run Dam