Kumano Reservoir
Key Takeaway
Kumano Reservoir is classified as high hazard in Hawaii. It was completed in 1902 and is 124 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 | 48 ft (taller than 78.7% in HI) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 175 acre-ft |
| Normal Storage | 150 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Year Completed | 1902 (124 years old) |
| NID ID | HI00106 |
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
Nearby Dams
Kaupale Reservoir
Kauai, HI
High Hazard 49 ftAepoeha Reservoir
Kauai, HI
High Hazard 42 ftAepoalua Reservoir
Kauai, HI
High Hazard 33 ftAepoekolu Reservoir
Kauai, HI
High Hazard 37 ftAepo Reservoir
Kauai, HI
High Hazard 70 ftManuhonuhonu Reservoir
Kauai, HI
High Hazard 45 ftHuinawai Reservoir
Kauai, HI
High Hazard 48 ftOmao Reservoir
Kauai, HI
High Hazard 40 ftFrequently Asked Questions
What is the hazard classification of Kumano Reservoir?
Kumano 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 Kumano Reservoir?
Kumano Reservoir is owned by BBCP Kauai Operating, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Kumano Reservoir built?
Kumano Reservoir was completed in 1902, making it 124 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 Kumano Reservoir?
Kumano 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 Kumano Reservoir?
Kumano Reservoir has a dam height of 48 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 Kumano Reservoir last inspected?
Kumano Reservoir was last inspected on October 12, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.