Larrabee Dam
Key Takeaway
Larrabee Dam is classified as low hazard in New York. It was completed in 1985 and is 41 years old. Its primary use is water supply.
Physical Details
| Dam Height | 13 ft (taller than 29.9% in NY) |
| Dam Length | 1,950 ft |
| Dam Type | Earth |
| Max Storage | 405 acre-ft |
| Normal Storage | 145 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 1,200 cfs |
| Year Completed | 1985 (41 years old) |
| NID ID | NY01581 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
CITY OF JOHNSTOWN WATER BOARD
Local Government
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What is the hazard classification of Larrabee Dam?
Larrabee Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Larrabee Dam?
Larrabee Dam is owned by CITY OF JOHNSTOWN WATER BOARD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Larrabee Dam built?
Larrabee Dam was completed in 1985, making it 41 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 Larrabee Dam?
Larrabee 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 Larrabee Dam?
Larrabee Dam has a dam height of 13 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 Larrabee Dam last inspected?
Larrabee Dam was last inspected on June 14, 1999. Inspection dates indicate when a formal review occurred, not the results of that inspection.