Lake Mount Union
Key Takeaway
Lake Mount Union is classified as high hazard in Pennsylvania. It was completed in 1927 and is 99 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 | 51 ft (taller than 84.8% in PA) |
| Dam Length | 303 ft |
| Dam Type | Concrete |
| Max Storage | 211 acre-ft |
| Normal Storage | 153 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 3 sq mi |
| Year Completed | 1927 (99 years old) |
| NID ID | PA00473 |
Safety Information
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?
Ownership
MOUNT UNION MUNICIPAL AUTHORITY
Local Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Lake Mount Union?
Lake Mount Union 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 Lake Mount Union?
Lake Mount Union is owned by MOUNT UNION MUNICIPAL AUTHORITY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lake Mount Union built?
Lake Mount Union was completed in 1927, making it 99 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 Lake Mount Union?
Lake Mount Union 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 Lake Mount Union?
Lake Mount Union has a dam height of 51 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 Lake Mount Union last inspected?
Lake Mount Union was last inspected on November 15, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.