Kahoma Reservoir
Key Takeaway
Kahoma Reservoir is classified as high hazard in Hawaii. It was completed in 1918 and is 108 years old. Its primary use is irrigation. 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 | 60 ft (taller than 89.8% in HI) |
| Dam Length | 900 ft |
| Dam Type | Earth |
| Max Storage | 27 acre-ft |
| Normal Storage | 18 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 77 cfs |
| Year Completed | 1918 (108 years old) |
| Year Modified | 1953 |
| NID ID | HI00057 |
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
West Maui Land Co./Kahoma Land LLC
Private
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What is the hazard classification of Kahoma Reservoir?
Kahoma Reservoir 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 Kahoma Reservoir?
Kahoma Reservoir is owned by West Maui Land Co./Kahoma Land LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Kahoma Reservoir built?
Kahoma Reservoir was completed in 1918, making it 108 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 Kahoma Reservoir?
Kahoma Reservoir serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Kahoma Reservoir?
Kahoma Reservoir has a dam height of 60 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 Kahoma Reservoir last inspected?
Kahoma Reservoir was last inspected on August 11, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.