King William County Dam #9 Reservoir Report
Last Updated: December 6, 2025
King William County Dam #9, located in King William, Virginia, is a state-regulated dam with a height of 15.5 feet and a storage capacity of 67.21 acre-feet.
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Summary
Managed by the Department of Conservation and Recreation, this dam serves an important role in water resource management in the region. While its hazard potential and condition assessment are currently undetermined and not rated, respectively, it is subject to regular state inspection and enforcement to ensure its safety and reliability.
With a primary purpose not listed, King William County Dam #9 stands as a vital infrastructure in the Norfolk District, providing critical water storage and management capabilities. Despite lacking specific information on its design and construction details, its location at 37.6976° N, -76.9976° W, showcases its strategic positioning within the county. As water resource and climate enthusiasts, the data on this dam serves as a reminder of the intricate network of structures that play a crucial role in mitigating the impact of extreme weather events on communities and ecosystems.
Dam Length |
210 |
Dam Height |
15.5 |
Surface Area |
9.2 |
Hydraulic Height |
15.5 |
Nid Storage |
67.21 |
Structural Height |
15.5 |
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.
King William County Dam #9