Altamont Main Reservoir Dam
Key Takeaway
Altamont Main Reservoir Dam is classified as high hazard in New York. It was completed in 1898 and is 128 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 | 37 ft (taller than 86.3% in NY) |
| Dam Length | 330 ft |
| Dam Type | Earth |
| Max Storage | 140 acre-ft |
| Normal Storage | 102 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 987 cfs |
| Year Completed | 1898 (128 years old) |
| NID ID | NY00126 |
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
VILLAGE OF ALTAMONT
Local Government
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High Hazard 35 ftFrequently Asked Questions
What is the hazard classification of Altamont Main Reservoir Dam?
Altamont Main Reservoir Dam 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 Altamont Main Reservoir Dam?
Altamont Main Reservoir Dam is owned by VILLAGE OF ALTAMONT (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Altamont Main Reservoir Dam built?
Altamont Main Reservoir Dam was completed in 1898, making it 128 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 Altamont Main Reservoir Dam?
Altamont Main Reservoir Dam 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 Altamont Main Reservoir Dam?
Altamont Main Reservoir Dam has a dam height of 37 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 Altamont Main Reservoir Dam last inspected?
Altamont Main Reservoir Dam was last inspected on September 3, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.