Pauwela Reservoir
Key Takeaway
Pauwela Reservoir is classified as high hazard in Hawaii. It was completed in 1904 and is 122 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 | 47 ft (taller than 78% in HI) |
| Dam Length | 270 ft |
| Dam Type | Earth |
| Max Storage | 142 acre-ft |
| Normal Storage | 98 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 590 cfs |
| Year Completed | 1904 (122 years old) |
| NID ID | HI00096 |
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
East Maui Irrigation Company, Mahi Pono Holdings, LLC
Private
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High Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Pauwela Reservoir?
Pauwela 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 Pauwela Reservoir?
Pauwela Reservoir is owned by East Maui Irrigation Company, Mahi Pono Holdings, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pauwela Reservoir built?
Pauwela Reservoir was completed in 1904, making it 122 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 Pauwela Reservoir?
Pauwela 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 Pauwela Reservoir?
Pauwela Reservoir has a dam height of 47 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 Pauwela Reservoir last inspected?
Pauwela Reservoir was last inspected on October 12, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.