Hawi No. 5 Reservoir
Key Takeaway
Hawi No. 5 Reservoir is classified as high hazard in Hawaii. It was completed in 1930 and is 96 years old. Its primary use is other. 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 | 20 ft (taller than 10.2% in HI) |
| Dam Length | 1,500 ft |
| Dam Type | Earth |
| Max Storage | 55 acre-ft |
| Normal Storage | 55 acre-ft |
| Surface Area | 11 acres |
| Year Completed | 1930 (96 years old) |
| NID ID | HI00051 |
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
Hualua Farm, LLC, State of Hawaii, Dept of Agriculture
State Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Hawi No. 5 Reservoir?
Hawi No. 5 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 Hawi No. 5 Reservoir?
Hawi No. 5 Reservoir is owned by Hualua Farm, LLC, State of Hawaii, Dept of Agriculture (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hawi No. 5 Reservoir built?
Hawi No. 5 Reservoir was completed in 1930, making it 96 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 Hawi No. 5 Reservoir?
Hawi No. 5 Reservoir serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Hawi No. 5 Reservoir?
Hawi No. 5 Reservoir has a dam height of 20 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 Hawi No. 5 Reservoir last inspected?
Hawi No. 5 Reservoir was last inspected on June 23, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.