Miller Pond Reservoir Report

Last Updated: December 6, 2025

Miller Pond in Mount Pleasant Township, Pennsylvania, is a state-regulated water resource with a primary purpose of recreation.


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Summary

Built in 1867, this Earth dam stands at 25 feet tall and spans 260 feet in length, holding a maximum storage capacity of 1,649 acre-feet. The pond covers a surface area of 67 acres and has a normal storage capacity of 635 acre-feet, serving as a popular destination for outdoor enthusiasts seeking water-based activities.

Managed by the Pennsylvania Department of Environmental Protection, Miller Pond is situated along the TR Johnson Creek in Wayne County. Despite its high hazard potential, the dam's condition assessment is rated as fair, with a last inspection date in March 2021. With a history dating back over a century, this picturesque water resource offers both recreational opportunities and a critical source of water storage for the area, contributing to the local ecosystem and climate resilience efforts. For water resource and climate enthusiasts, Miller Pond provides a fascinating study in the intersection of human intervention and natural landscapes, showcasing the importance of sustainable dam management practices in the face of changing environmental conditions.

Year Completed

1867

Dam Length

260

Dam Height

25

River Or Stream

TR JOHNSON CREEK

Primary Dam Type

Earth

Surface Area

67

Drainage Area

1

Nid Storage

1649

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

25
       
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.