Reservoir 140
Key Takeaway
Reservoir 140 is classified as high hazard in Hawaii. It was completed in 1926 and is 100 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 | 35 ft (taller than 51.2% in HI) |
| Dam Length | 900 ft |
| Dam Type | Earth |
| Max Storage | 53 acre-ft |
| Normal Storage | 43 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 340 cfs |
| Year Completed | 1926 (100 years old) |
| NID ID | HI00059 |
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
Maui Land & Pineapple Co.
Private
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High Hazard 49 ftFrequently Asked Questions
What is the hazard classification of Reservoir 140?
Reservoir 140 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 Reservoir 140?
Reservoir 140 is owned by Maui Land & Pineapple Co. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Reservoir 140 built?
Reservoir 140 was completed in 1926, making it 100 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 Reservoir 140?
Reservoir 140 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 Reservoir 140?
Reservoir 140 has a dam height of 35 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 Reservoir 140 last inspected?
Reservoir 140 was last inspected on December 8, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.