Beaver Lake Reservoir Report

Last Updated: December 6, 2025

Beaver Lake, located in Lebanon Township, Wayne County, Pennsylvania, is a privately owned earth dam with a primary purpose of recreation.


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Summary

Completed in 1962, the dam stands at a height of 32 feet and spans 850 feet in length, creating a reservoir with a storage capacity of 261 acre-feet. The dam regulates the flow of the nearby Dyberry Creek and covers a surface area of 16 acres, providing opportunities for water-based recreational activities.

Maintained by the Pennsylvania Department of Environmental Protection, Beaver Lake is classified as a state-regulated structure with inspections conducted every two years. Despite being assessed as having a fair condition, the dam poses a significant hazard potential due to its age and the surrounding area's topography. Emergency action plans are in place, although updates and risk assessments are still pending. The dam plays a crucial role in water resource management and contributes to the local climate ecosystem, making it a key focal point for water resource and climate enthusiasts in the region.

With its picturesque location and recreational offerings, Beaver Lake serves as a vital resource for the community while also highlighting the importance of sustainable dam management practices in the face of changing climate conditions. As stakeholders continue to monitor and maintain the dam, it remains a symbol of the delicate balance between human activity and environmental conservation, making it a site of interest for those passionate about water resource management and climate resilience efforts in the region.

Year Completed

1962

Dam Length

850

Dam Height

32

River Or Stream

TR DYBERRY CREEK

Primary Dam Type

Earth

Surface Area

16

Drainage Area

0.32

Nid Storage

261

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

32
       
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.