Crooked Creek Dam Reservoir Report

Last Updated: December 6, 2025

Crooked Creek Dam, also known as Crooked Creek Lake, is located in Armstrong County, Pennsylvania, and is owned and managed by the US Army Corps of Engineers.


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Summary

Completed in 1940, the earth dam stands at a structural height of 143 feet and has a maximum storage capacity of 132,000 acre-feet. The primary purpose of the dam is flood risk reduction, although it also provides recreational opportunities for visitors.

The dam has a high hazard potential and is regularly inspected to ensure its safety and integrity. USACE implements risk management measures by monitoring the dam's condition, prioritizing activities to mitigate risks, and collaborating with local emergency managers and the public to raise awareness and prepare for potential emergencies. The emergency action plan for the dam is regularly updated, and maintenance and repairs are conducted as needed to keep the dam functioning properly.

In the event of severe weather or high water levels, water may be released through the dam to manage levels and relieve pressure. USACE works diligently to address all types of flood risk associated with the dam and ensures that the necessary measures are in place to protect surrounding communities and maintain the dam's structural integrity.

Year Completed

1940

Dam Length

1480

River Or Stream

CROOKED CREEK

Primary Dam Type

Earth

Surface Area

350

Hydraulic Height

134

Drainage Area

277

Nid Storage

132000

Structural Height

143

Outlet Gates

Valve - 2, Vertical Lift - 3

Hazard Potential

High

Foundations

Rock, Soil

Nid Height

143
       
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.