Muddy Run Intake Channel Dam Reservoir Report

Last Updated: December 8, 2025

The Muddy Run Intake Channel Dam, also known as the Muddy Run Canal Dam, is a rockfill dam located in Lancaster, Pennsylvania, along the Susquehanna River.


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Summary

Built in 1967 by the Philadelphia Electric Company, this hydroelectric structure stands at a height of 35 feet and has a length of 2300 feet. It serves as a vital component in the generation of renewable energy, with a storage capacity of 60,500 acre-feet and a maximum discharge capability of 20,000 cubic feet per second.

This dam plays a crucial role in water resource management and climate resilience efforts in the region. Its uncontrolled spillway, with a width of 200 feet, helps regulate water flow and prevent flooding during times of high discharge. Despite its high hazard potential, as classified by the Federal Energy Regulatory Commission, the dam's risk assessment is moderate, with no reported condition assessment available. Emergency action plans are in place, with the last revision made in July 2017, ensuring preparedness for any unforeseen events.

As a key infrastructure for hydroelectric power generation, the Muddy Run Intake Channel Dam represents a sustainable energy source that contributes to reducing carbon emissions and mitigating the impacts of climate change. Its presence underscores the importance of responsible water resource management and the integration of renewable energy sources in building a more resilient and environmentally conscious future.

Year Completed

1967

Dam Length

2300

Dam Height

35

River Or Stream

Susquehanna River

Primary Dam Type

Rockfill

Surface Area

1000

Drainage Area

9.2

Nid Storage

60500

Hazard Potential

High

Nid Height

35
       
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.