Wilmore Reservoir Report

Last Updated: December 5, 2025

Wilmore, located in Cambria, Pennsylvania, is a masonry dam completed in 1908 with a primary purpose of water supply.


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Summary

It stands at a height of 48 feet and has a storage capacity of 3990 acre-feet, serving as a critical infrastructure for the surrounding area. However, the dam is classified as having a high hazard potential and is in poor condition, highlighting the need for regular inspections and maintenance to ensure its continued safety and functionality.

Managed by the Pennsylvania Department of Environmental Protection, Wilmore is regulated and permitted by the state, with inspection and enforcement measures in place to uphold safety standards. Despite its age, the dam continues to provide essential water storage for the N Branch Little Conemaugh River, with a drainage area of 25 square miles. The dam's condition assessment and hazard potential indicate the importance of ongoing risk management and emergency preparedness to mitigate potential threats and safeguard the local community and environment.

As part of the Pittsburgh District, Wilmore's infrastructure plays a crucial role in water resource management and climate resilience efforts. With its location in Summerhill Township, the dam's significance extends beyond its historical construction to its vital role in providing water supply for the region. As water resource and climate enthusiasts, understanding the complexities of managing and maintaining structures like Wilmore is essential for ensuring sustainable water management practices and protecting communities from potential risks associated with aging infrastructure.

Year Completed

1908

Dam Length

850

Dam Height

48

River Or Stream

N BR LITTLE CONEMAUGH RIVER

Primary Dam Type

Masonry

Surface Area

162

Drainage Area

25

Nid Storage

3990

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

48
       
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.