Patterson Creek No. 12 Dam Reservoir Report
Last Updated: December 5, 2025
Patterson Creek No.
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Summary
12 Dam, also known as Thorn Run, is a local government-owned structure in Burlington, West Virginia, designed by the USDA NRCS and completed in 1969. With a primary purpose of flood risk reduction, this earth dam stands at a height of 75 feet and has a hydraulic height of 74 feet. It has a storage capacity of 2,772 acre-feet and serves to protect the surrounding area from potential flooding events.
Located on Thorn Run in Grant County, this dam plays a crucial role in managing the water resources of the region. It is regulated by the state agency DWWM and undergoes regular inspections to ensure its structural integrity and operational effectiveness. With a hazard potential rated as high and a moderate risk assessment, the dam's emergency action plan is in place to address any potential risks and protect the community in case of a dam failure.
Despite not being rated for its current condition, Patterson Creek No. 12 Dam remains a vital piece of infrastructure for flood control in the area. With a history of service dating back to the late 1960s, this dam continues to play a significant role in water resource management and climate resilience efforts in West Virginia.
Year Completed |
1969 |
Dam Length |
760 |
Dam Height |
75 |
River Or Stream |
THORN RUN |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
74 |
Drainage Area |
8.74 |
Nid Storage |
2772 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
75 |
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.
Patterson Creek No. 12 Dam