Brinkerton Reservoir Report

Last Updated: December 5, 2025

Brinkerton, located in Mount Pleasant Township, Pennsylvania, is a private earth dam completed in 1903 for recreational purposes.


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Summary

The dam stands at a height of 29 feet and spans 400 feet in length, with a storage capacity of 43 acre-feet and a surface area of 6 acres. It is regulated by the Pennsylvania Department of Environmental Protection and has a low hazard potential.

Situated along the TR Sewickley Creek, Brinkerton serves as a popular recreational spot in Westmoreland County, offering opportunities for outdoor activities such as fishing, boating, and picnicking. Despite its age, the dam's condition assessment is not rated, with its last inspection conducted in June 2017. The dam has not been modified over the years and does not have an Emergency Action Plan (EAP) in place.

For water resource and climate enthusiasts, Brinkerton presents a fascinating blend of historical significance and natural beauty. Its presence along the tranquil creek adds to the charm of the surrounding landscape, making it a valuable asset for both local residents and visitors seeking a serene escape in nature. With its regulated status and low hazard potential, Brinkerton stands as a testament to responsible dam management in ensuring both safety and recreational enjoyment for all who frequent its waters.

Year Completed

1903

Dam Length

400

Dam Height

29

River Or Stream

TR SEWICKLEY CREEK

Primary Dam Type

Earth

Surface Area

6

Drainage Area

0.9

Nid Storage

43

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

29
       
Seasonal Comparison

Weather Forecast

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.