Willis Dam Reservoir Report
Nearby: Mountain Run Dam #18 Holland Dam
Last Updated: December 5, 2025
Located in Culpeper, Virginia, Willis Dam is a privately owned structure that serves multiple purposes, including irrigation and recreation.
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Summary
The dam, constructed as an earth type, stands at a height of 18 feet and has a storage capacity of 60 acre-feet. Situated on the TR-Balds Run river, the dam is under state regulation and inspection by the Department of Conservation and Recreation, ensuring its safety and compliance with environmental standards.
While the condition assessment of Willis Dam is currently marked as "Not Rated" and its hazard potential is deemed "Undetermined," the dam remains an essential resource for water management in the region. Although the exact year of completion and other details such as spillway type and outlet gates are not specified, the dam's presence contributes to the overall water infrastructure in the area. With its strategic location and capacity for storing water, Willis Dam plays a crucial role in supporting irrigation activities and providing opportunities for recreational activities along the river.
As water resource and climate enthusiasts continue to monitor and assess the impact of infrastructure like Willis Dam, the structure underscores the importance of sustainable water management practices. With its position within the Baltimore District and under state jurisdiction, Willis Dam represents a collaborative effort between private ownership and governmental oversight to ensure the efficient use of water resources for irrigation while also promoting recreational use. As efforts to assess and maintain the condition of Willis Dam progress, its significance in water resource management in Culpeper, Virginia, remains a focal point for conservation and sustainability initiatives.
Dam Height |
18 |
River Or Stream |
TR-Balds Run |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
18 |
Nid Storage |
60 |
Structural Height |
18 |
Hazard Potential |
Undetermined |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Hazel River At Rixeyville
|
70cfs |
Rapidan River Near Culpeper
|
118cfs |
Rappahannock River At Remington
|
177cfs |
Battle Run Near Laurel Mills
|
3cfs |
Robinson River Near Locust Dale
|
61cfs |
Cedar Run Near Catlett
|
8cfs |
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.
Willis Dam