Spruce Run Reservoir

SPRUCE RUN· Union, Pennsylvania· Built 1957· Earth· 46 ft tall
High Hazard Water Supply Private

Key Takeaway

Spruce Run Reservoir is classified as high hazard in Pennsylvania. It was completed in 1957 and is 69 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 46 ft (taller than 82.4% in PA)
Dam Length4,900 ft
Dam TypeEarth
Max Storage1.9K acre-ft
Normal Storage1.6K acre-ft
Surface Area64 acres
Drainage Area14 sq mi
Year Completed1957 (69 years old)
NID IDPA00587

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: June 9, 2020
State Regulated: Yes
Regulatory Agency: Pennsylvania Department of Environmental Protection

Ownership

PA AMERICAN WATER COMPANY

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Spruce Run Reservoir?

Spruce Run Reservoir is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Spruce Run Reservoir?

Spruce Run Reservoir is owned by PA AMERICAN WATER COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Spruce Run Reservoir built?

Spruce Run Reservoir was completed in 1957, making it 69 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Spruce Run Reservoir?

Spruce Run Reservoir serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Spruce Run Reservoir?

Spruce Run Reservoir has a dam height of 46 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Spruce Run Reservoir last inspected?

Spruce Run Reservoir was last inspected on June 9, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.