Byrd Mill Dam Reservoir Report
Nearby: Small Dam Harris Dam
Last Updated: January 1, 2026
Byrd Mill Dam, located in Louisa, Virginia, on the South Anna River, is a rockfill dam with a height of 16 feet and a storage capacity of 190 acre-feet.
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Summary
Owned by an unspecified entity and regulated by the Department of Conservation and Recreation, this dam serves a primary purpose that is classified as "Other". Despite being state regulated, the hazard potential of Byrd Mill Dam is currently undetermined, and its condition has not been rated.
With a history that is not fully documented, Byrd Mill Dam remains an enigmatic structure with a significant impact on the local water resources and climate. While the dam's inspection frequency is set at 1, its emergency action plan status and risk assessment measures are largely unknown. As a site of potential hazard and risk, Byrd Mill Dam presents an intriguing case study for water resource and climate enthusiasts interested in exploring the complexities of dam management and regulation in Virginia.
Dam Height |
16 |
River Or Stream |
SOUTH ANNA RIVER |
Hydraulic Height |
16 |
Nid Storage |
190 |
Structural Height |
16 |
Hazard Potential |
Undetermined |
Nid Height |
16 |
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.
Byrd Mill Dam