King William County Dam #10 Reservoir Report
Last Updated: December 6, 2025
King William County Dam #10, located in Virginia, is a state-regulated structure with a height of 17.5 feet and a storage capacity of 181.9 acre-feet.
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Summary
The dam, built by the Norfolk District of the US Army Corps of Engineers, serves an important role in water resource management in the region. While the dam's primary purpose is not listed, it is designed to store water for various uses and is subject to state permitting, inspection, and enforcement by the Department of Conservation and Recreation.
Despite being labeled as having an "undetermined" hazard potential and a "not rated" condition assessment, King William County Dam #10 continues to play a crucial role in controlling water flow and providing storage in the area. Situated within the picturesque King William County, the dam stands at 17.5 feet tall and spans 350 feet in length. Its location at a latitude of 37.6377 and longitude of -77.0002 makes it a key landmark in the region, with a normal storage capacity of 129.03 acre-feet and a surface area of 25.3 acres.
As water resource and climate enthusiasts explore the intricacies of dam infrastructure, King William County Dam #10 offers a unique case study in state-regulated dam management. With its association with the Department of Conservation and Recreation and state jurisdiction over its operation, the dam serves as a focal point for understanding the complexities of water resource governance in Virginia. Despite its undetermined hazard potential, the dam's role in water storage and control remains vital for the region's water supply and management efforts.
Dam Length |
350 |
Dam Height |
17.5 |
Surface Area |
25.3 |
Hydraulic Height |
17.5 |
Nid Storage |
181.9 |
Structural Height |
17.5 |
Hazard Potential |
Undetermined |
Nid Height |
18 |
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 #10
White's Landing Road Gordon Landing