Dalton Run
Key Takeaway
Dalton Run is classified as high hazard in Pennsylvania. It was completed in 1905 and is 121 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 | 61 ft (taller than 89.2% in PA) |
| Dam Length | 600 ft |
| Dam Type | Earth |
| Max Storage | 390 acre-ft |
| Normal Storage | 276 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 4 sq mi |
| Year Completed | 1905 (121 years old) |
| NID ID | PA00232 |
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
GREATER JOHNSTOWN WATER AUTHORITY
Local Government
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Significant Hazard 23 ftFrequently Asked Questions
What is the hazard classification of Dalton Run?
Dalton Run 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 Dalton Run?
Dalton Run is owned by GREATER JOHNSTOWN WATER AUTHORITY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Dalton Run built?
Dalton Run was completed in 1905, making it 121 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 Dalton Run?
Dalton Run 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 Dalton Run?
Dalton Run has a dam height of 61 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 Dalton Run last inspected?
Dalton Run was last inspected on March 25, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.