Little Sugar Run Reservoir Report

Last Updated: December 5, 2025

Little Sugar Run is a dam located in St.


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Summary

Clair Township, Westmoreland, Pennsylvania, with a primary purpose of water supply. The dam, constructed of earth and buttress core types, stands at a height of 25 feet and has a length of 480 feet. It has a storage capacity of 21.5 acre-feet, with a normal storage level of 14 acre-feet and a surface area of 2 acres. The dam is state-regulated by the Pennsylvania Department of Environmental Protection and undergoes regular inspections to ensure its structural integrity and safety.

Despite not being rated for condition assessment, Little Sugar Run poses a significant hazard potential due to its proximity to the surrounding area. The dam has a history of inspection dating back to October 2018, with a frequency of every two years to monitor any potential risks. While the dam has not been modified in recent years, it remains under the jurisdiction of state regulatory agencies for permitting, inspection, and enforcement. Overall, Little Sugar Run serves as a vital water resource infrastructure in the region, ensuring a stable water supply for the local government and community.

Dam Length

480

Dam Height

25

River Or Stream

LITTLE SUGAR RUN

Primary Dam Type

Earth

Surface Area

2

Drainage Area

1.52

Nid Storage

21.5

Hazard Potential

Significant

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.