Dyer Dam Reservoir Report
Nearby: Holstrum Dam Freshwater Pond
Last Updated: December 22, 2025
Dyer Dam, located in Hanover, Virginia, is a privately owned structure regulated by the Department of Conservation and Recreation.
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Summary
Standing at a height of 10.5 feet with a storage capacity of 66.91 acre-feet, this dam plays a crucial role in water resource management in the area. Despite its importance, the dam's hazard potential is currently classified as 'Undetermined', with a condition assessment of 'Not Rated'.
Although the exact year of completion is unknown, Dyer Dam has a structural height of 10.5 feet and a length of 300 feet, serving as a key infrastructure for water storage and management. The dam's normal storage capacity is 42.66 acre-feet, providing water for various purposes in the region. With state regulation in place for permitting, inspection, and enforcement, Dyer Dam ensures the safety and sustainability of water resources for the community.
With a primary purpose that remains unspecified, Dyer Dam stands as a vital component of water resource infrastructure in Virginia. While its emergency action plan and risk management measures are currently not rated, the dam continues to play a significant role in water conservation efforts. As a point of interest for water resource and climate enthusiasts, Dyer Dam represents a crucial link in the state's water management system, contributing to the overall environmental resilience of the region.
Dam Length |
300 |
Dam Height |
10.5 |
Surface Area |
14.22 |
Hydraulic Height |
10.5 |
Nid Storage |
66.91 |
Structural Height |
10.5 |
Hazard Potential |
Undetermined |
Nid Height |
11 |
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.
Dyer Dam