Hukiwai Reservoir
Key Takeaway
Hukiwai Reservoir is classified as high hazard in Hawaii. It was completed in 1910 and is 116 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 | 36 ft (taller than 53.5% in HI) |
| Dam Length | 1,000 ft |
| Dam Type | Earth |
| Max Storage | 56 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1910 (116 years old) |
| NID ID | HI00101 |
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
BBCP Kauai Operating, LLC
Private
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High Hazard 48 ftFrequently Asked Questions
What is the hazard classification of Hukiwai Reservoir?
Hukiwai 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 Hukiwai Reservoir?
Hukiwai Reservoir is owned by BBCP Kauai Operating, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hukiwai Reservoir built?
Hukiwai Reservoir was completed in 1910, making it 116 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 Hukiwai Reservoir?
Hukiwai 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 Hukiwai Reservoir?
Hukiwai Reservoir has a dam height of 36 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 Hukiwai Reservoir last inspected?
Hukiwai Reservoir was last inspected on November 1, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.