Brush Creek No.10 Reservoir Report

Last Updated: December 5, 2025

Brush Creek No.10, also known as Green Run, is a flood risk reduction structure located in Mercer, West Virginia.


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Summary

Built in 1963 by the USDA NRCS, this earth dam stands at a height of 47 feet and has a hydraulic height of 41 feet, serving the primary purpose of flood risk reduction along the tributary of Brush Creek. With a normal storage capacity of 16 acre-feet and a maximum storage of 632 acre-feet, this dam covers a surface area of 4 acres and drains a 1.2 square mile area.

Despite its fair condition assessment in 2013, Brush Creek No.10 has a hazard potential rated as high, indicating the importance of regular inspections and maintenance to ensure its structural integrity. The dam features an uncontrolled spillway and outlet gates, although no associated locks are present. The risk assessment for this structure is moderate, with a DSAC assigned date not specified. With a designated inspection frequency of 2 and the last inspection conducted in September 2015, ongoing risk management measures are essential to mitigate any potential hazards associated with this critical flood control infrastructure in Mercer, West Virginia.

Year Completed

1963

Dam Length

284

Dam Height

47

River Or Stream

TR OF BRUSH CK

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

41

Drainage Area

1.2

Nid Storage

632

Outlet Gates

Uncontrolled

Hazard Potential

High

Foundations

Rock, Soil

Nid Height

47
       
Seasonal Comparison

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Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.