King William County Dam #7 Reservoir Report
Nearby: Acquinton Dam Hall Dam
Last Updated: December 5, 2025
King William County Dam #7, located in Virginia, is a state-regulated structure under the jurisdiction of the Department of Conservation and Recreation.
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Summary
Standing at a height of 47.3 feet and with a storage capacity of 225.72 acre-feet, this dam serves a primary purpose that is not specified in the available data. The dam has a structural height matching its hydraulic height, with a length of 375 feet and a surface area of 9.9 acres.
Although the hazard potential and condition assessment of King William County Dam #7 are listed as "Undetermined" and "Not Rated" respectively, the state agency responsible for its regulation, inspection, and enforcement indicates that it meets state permitting and inspection requirements. The dam is located within the Norfolk District of the US Army Corps of Engineers and falls under the oversight of Representative Robert J. Wittman. With its detailed data and state-regulated status, this dam presents an intriguing subject for water resource and climate enthusiasts interested in the management and safety of such critical infrastructure.
Dam Length |
375 |
Dam Height |
47.3 |
Surface Area |
9.9 |
Hydraulic Height |
47.3 |
Nid Storage |
225.72 |
Structural Height |
47.3 |
Hazard Potential |
Undetermined |
Nid Height |
47 |
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.
King William County Dam #7