Moosic Lakes Reservoir Report

Last Updated: December 7, 2025

Moosic Lakes, located in Lackawanna, Pennsylvania, is a private water resource managed by the Pennsylvania Department of Environmental Protection.


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Summary

This recreational area sits in Jefferson Township and is situated along the WEST BRANCH WALLENPAUPAK CREEK, offering a serene and picturesque setting for outdoor enthusiasts. The dam at Moosic Lakes is an Earth type with a height of 12 feet, providing a storage capacity of 85.5 acre-feet and a surface area of 72 acres.

Despite its scenic beauty, Moosic Lakes has a significant hazard potential with a poor condition assessment, requiring regular inspections to ensure safety. The last inspection in June 2019 revealed the need for improvement, highlighting the importance of proper maintenance and risk management measures. While the dam serves primarily for recreational purposes, its maintenance and regulatory oversight by the Pennsylvania Department of Environmental Protection are crucial to prevent any potential risks or emergencies.

With its tranquil surroundings and recreational offerings, Moosic Lakes is a popular destination for water resource and climate enthusiasts. However, continuous monitoring and maintenance are essential to ensure the safety and sustainability of this private water resource. As such, efforts to enhance its condition and implement risk management measures will be vital in preserving this natural gem for future generations to enjoy.

Dam Height

12

River Or Stream

WEST BRANCH WALLENPAUPAK CREEK

Primary Dam Type

Earth

Surface Area

72

Drainage Area

0.72

Nid Storage

85.5

Hazard Potential

Significant

Foundations

Unlisted/Unknown

Nid Height

12
       
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.