Lower Mount Pleasant
Key Takeaway
Lower Mount Pleasant is classified as high hazard in Pennsylvania. It was completed in 1882 and is 144 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 | 28 ft (taller than 61.9% in PA) |
| Dam Length | 700 ft |
| Dam Type | Earth |
| Max Storage | 122 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1882 (144 years old) |
| NID ID | PA00645 |
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
HAZLETON CITY AUTHORITY
Local Government
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Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Lower Mount Pleasant?
Lower Mount Pleasant 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 Lower Mount Pleasant?
Lower Mount Pleasant is owned by HAZLETON CITY AUTHORITY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lower Mount Pleasant built?
Lower Mount Pleasant was completed in 1882, making it 144 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 Lower Mount Pleasant?
Lower Mount Pleasant 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 Lower Mount Pleasant?
Lower Mount Pleasant has a dam height of 28 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 Lower Mount Pleasant last inspected?
Lower Mount Pleasant was last inspected on November 6, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.