Kaupale Reservoir
Key Takeaway
Kaupale 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 | 49 ft (taller than 81.9% in HI) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 240 acre-ft |
| Normal Storage | 222 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1910 (116 years old) |
| NID ID | HI00108 |
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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What is the hazard classification of Kaupale Reservoir?
Kaupale 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 Kaupale Reservoir?
Kaupale Reservoir is owned by BBCP Kauai Operating, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Kaupale Reservoir built?
Kaupale 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 Kaupale Reservoir?
Kaupale 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 Kaupale Reservoir?
Kaupale Reservoir has a dam height of 49 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 Kaupale Reservoir last inspected?
Kaupale Reservoir was last inspected on October 12, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.