Deegan Lake Reservoir Report
Nearby: Hinkle Lake Maple Lake
Last Updated: December 13, 2025
Deegan Lake, located in Harrison County, West Virginia, is a rockfill dam that was completed in 1950 for the primary purpose of recreation.
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Summary
The dam stands at a height of 31 feet and has a maximum storage capacity of 297 acre-feet. With a normal storage capacity of 163 acre-feet and a surface area of 18 acres, Deegan Lake provides a picturesque setting for outdoor activities such as fishing, boating, and picnicking.
Managed by the local government, Deegan Lake is regulated by the West Virginia Department of Environmental Protection and undergoes regular inspections to ensure its structural integrity. The dam has a high hazard potential but has been deemed to be in satisfactory condition as of the last assessment in October 2015. Despite the potential risks, the dam continues to be a popular destination for residents and visitors alike, offering a tranquil escape in the midst of Davison Run.
As a vital water resource in the region, Deegan Lake plays a crucial role in providing recreational opportunities while also serving as a key flood control measure. With its beautiful surroundings and abundant wildlife, the lake serves as a haven for water resource and climate enthusiasts seeking to connect with nature and enjoy the benefits of sustainable water management in a picturesque setting.
Year Completed |
1950 |
Dam Length |
298 |
Dam Height |
31 |
River Or Stream |
DAVISSON RUN |
Primary Dam Type |
Rockfill |
Surface Area |
18 |
Hydraulic Height |
30 |
Drainage Area |
1.95 |
Nid Storage |
297 |
Hazard Potential |
High |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
West Fork River Near Mount Clare
|
271cfs |
West Fork River At Enterprise
|
533cfs |
Tygart Valley R At Tygart Dam Nr Grafton
|
880cfs |
Tygart Valley River At Colfax
|
1030cfs |
Tygart Valley River At Philippi
|
793cfs |
Three Fork Creek Nr Grafton
|
123cfs |
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.
Deegan Lake