Duncan Dam Reservoir Report
Nearby: Hughes Dam Tribble Dam
Last Updated: December 6, 2025
Duncan Dam, located in Halifax, Virginia, on the TR-CHILDERN CREEK river, is a vital water resource infrastructure managed by the Department of Conservation and Recreation.
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Summary
This earth dam stands at a height of 23 feet and has a storage capacity of 92 acre-feet, primarily serving the purpose of irrigation. With a normal storage capacity of 38 acre-feet, Duncan Dam plays a crucial role in supporting agricultural activities in the region.
Although the condition assessment of Duncan Dam is currently listed as "Not Rated," its hazard potential is categorized as "Undetermined." The dam has not been modified in recent years, and data on its completion year and other key parameters are not available. Despite these uncertainties, the dam is regulated and inspected by the state authorities, ensuring its safe operation and maintenance. With a mandated inspection frequency of 1, Duncan Dam remains under active oversight to mitigate any potential risks.
As a significant structure in the region, Duncan Dam offers opportunities for recreational activities in addition to its primary function of irrigation. Its strategic location and operational importance underscore the need for continued monitoring and management to ensure the safety and sustainability of water resources in Halifax, Virginia.
Dam Height |
23 |
River Or Stream |
TR-CHILDERN CREEK |
Hydraulic Height |
23 |
Nid Storage |
92 |
Structural Height |
23 |
Hazard Potential |
Undetermined |
Nid Height |
23 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Roanoke (Staunton) River At Brookneal
|
906cfs |
Falling River Near Naruna
|
59cfs |
Banister River At Halifax
|
177cfs |
Roanoke (Staunton) River At Randolph
|
1080cfs |
Roanoke River At Altavista
|
618cfs |
Cub Creek At Phenix
|
44cfs |
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.
Duncan Dam