Indspec No 2 Reservoir Report

Last Updated: December 6, 2025

Indspec No 2 is a private earth dam located in Petrolia Borough, Butler, Pennsylvania, along the South Branch of Bear Creek.


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Summary

Built in 1950 for grade stabilization, this dam stands at a height of 27 feet and spans 360 feet in length, with a storage capacity of 37 acre-feet. Despite its age, the dam's condition is rated as satisfactory, with a high hazard potential due to its location and purposes.

Managed by the Pennsylvania Department of Environmental Protection, Indspec No 2 undergoes regular inspections, with the last one conducted in October 2020. While no emergency action plan (EAP) is currently in place, the dam meets regulatory guidelines and has not experienced any recent modifications. The risk assessment and management measures for this dam are currently unspecified, but its location and condition suggest a need for ongoing monitoring and potential updates to its emergency preparedness.

Water resource and climate enthusiasts interested in the sustainability and safety of dams like Indspec No 2 can appreciate the detailed data available on its design, construction, and regulatory oversight. As a critical infrastructure for water management and flood control, this dam serves as a reminder of the importance of proactive maintenance and monitoring to ensure the long-term integrity of our water resources in the face of evolving climate challenges.

Year Completed

1950

Dam Length

360

Dam Height

27

River Or Stream

TR SOUTH BRANCH BEAR CREEK

Primary Dam Type

Earth

Surface Area

2

Drainage Area

0.34

Nid Storage

37

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

27
       
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.