Hollidaysburg Muleshoe Reservoir Reservoir Report

Last Updated: December 5, 2025

Hollidaysburg Muleshoe Reservoir, located in Blair County, Pennsylvania, is a vital water supply source for the surrounding area.


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Summary

Managed by the local government, this earth dam structure was completed in 1957 and stands at a height of 66 feet, with a storage capacity of 558 acre-feet. The reservoir covers a surface area of 15.5 acres and serves as a crucial resource for the region's water needs.

The dam on Blair's Run is regulated by the Pennsylvania Department of Environmental Protection, ensuring that it meets state inspection and enforcement standards. Despite its high hazard potential, the dam is deemed to be in satisfactory condition, with regular inspections conducted to ensure its safety and functionality. In 2015, hydraulic modifications were made to enhance its performance, reflecting a commitment to maintaining and improving this essential water infrastructure.

With its strategic location in Juniata Township, the Hollidaysburg Muleshoe Reservoir plays a key role in water resource management in the region. As climate change continues to impact water availability and quality, reservoirs like this one are crucial for ensuring a reliable water supply for communities. By adhering to state regulations and undergoing regular assessments, the reservoir remains a resilient and dependable resource for the area's water needs.

Years Modified

2015 - Hydraulic

Year Completed

1957

Dam Length

520

Dam Height

66

River Or Stream

BLAIRS RUN

Primary Dam Type

Earth

Surface Area

15.5

Drainage Area

6.6

Nid Storage

558

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

66
       
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.