Dunivan Dam Reservoir Report
Nearby: Seth Corp Dam Grattan Dam
Last Updated: December 6, 2025
Dunivan Dam, located in Powhatan, Virginia, is a privately owned structure regulated by the Department of Conservation and Recreation.
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Summary
Standing at a height of 28.5 feet and stretching 460 feet in length, the dam provides a storage capacity of 71.82 acre-feet, with a normal storage level of 52 acre-feet. Despite its undetermined hazard potential and lack of a condition assessment rating, the dam is equipped with state-regulated inspection, permitting, and enforcement mechanisms to ensure its safety and compliance with regulations.
While the primary purpose of Dunivan Dam is not specified, its presence in the Norfolk District underlines its importance in managing water resources in the region. With a surface area of 5.2 acres and a latitude of 37.6148 and longitude of -77.9717, the dam plays a crucial role in water management in Virginia. Although details regarding the dam's construction year and specific purposes are unavailable, its significant storage capacity and state-regulated status highlight its relevance in the local water infrastructure.
As part of the state-regulated system, Dunivan Dam falls under the jurisdiction of the Department of Conservation and Recreation in Virginia. The dam's condition assessment remains unrated, and details regarding emergency action plans and risk management measures are currently unavailable. Despite these gaps in information, the dam's location and regulated status underscore its importance in water resource management and climate resilience efforts in the region, making it a key point of interest for water resource and climate enthusiasts.
Dam Length |
460 |
Dam Height |
28.5 |
Surface Area |
5.2 |
Hydraulic Height |
28.5 |
Nid Storage |
71.82 |
Structural Height |
28.5 |
Hazard Potential |
Undetermined |
Nid Height |
29 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
James River At Cartersville
|
2090cfs |
Fine Creek At Fine Creek Mills
|
3cfs |
Appomattox River At Mattoax
|
309cfs |
James River And Kanawha Canal Near Richmond
|
131cfs |
Slate River Near Arvonia
|
73cfs |
Rivanna River At Palmyra
|
203cfs |
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.
Dunivan Dam
Mill Mount Trail Powhatan County