Puu Opae Reservoir, located in Mana, Hawaii, is a state-regulated water storage facility primarily used for irrigation purposes.
Wind
Humidity
Completed in 1930, this earthen dam stands at a height of 41 feet and has a storage capacity of 295 acre-feet. With a surface area of 11.5 acres and a hydraulic height of 36 feet, the reservoir plays a crucial role in supporting agricultural activities in the region.
Despite its importance in water management, Puu Opae Reservoir has been assessed to be in poor condition, with a hazard potential rated as low. The last inspection in November 2017 highlighted the need for improvements to ensure the safety and efficiency of the structure. The reservoir's moderate risk assessment underscores the importance of continued monitoring and maintenance to mitigate potential risks and safeguard the surrounding community and environment.
As climate change impacts water resources and infrastructure, Puu Opae Reservoir serves as a vital asset in mitigating droughts and supporting local agriculture. With its historical significance and ongoing regulatory oversight by the Department of Land and Natural Resources, the reservoir represents a key piece of Hawaii's water management infrastructure. Efforts to address its current condition and enhance its resilience will be crucial in ensuring a sustainable water supply for the region's future.
Year Completed |
1930 |
Dam Length |
1000 |
Dam Height |
41 |
River Or Stream |
TR-NUI STREAM OFFSTREAM |
Primary Dam Type |
Earth |
Surface Area |
11.5 |
Hydraulic Height |
36 |
Nid Storage |
295 |
Structural Height |
47 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
47 |
Waimea River Nr Waimea
|
295cfs |
Kawaikoi Stream Nr Waimea
|
30cfs |
Waialae Str At Alt 3
|
34cfs |
Wainiha River Nr Hanalei
|
178cfs |
Hanalei River Nr Hanalei
|
258cfs |
Eb Of Nf Wailua River Nr Lihue
|
39cfs |
| Location | Reservations | Toilets |
|---|---|---|
Polihale State Park - Kauai
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Camp Hale Koa
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Camp Alan Faye
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Wiliwili Camp
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Kaluahaulu
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Hipalau
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