Okinawa Reservoir, located in Kapaia, Hawaii, serves as a critical water resource for irrigation purposes in the region.
Built in 1920, this privately owned reservoir stands at a height of 29 feet and has a storage capacity of 142 acre-feet. With a surface area of 14 acres and a drainage area of 0.78 square miles, the reservoir plays a key role in supporting agricultural activities in the area.
Despite its age, Okinawa Reservoir has been well-maintained, with regular inspections ensuring its structural integrity. The dam, primarily of earth construction with buttress core types, stands at 25 feet high and has a hydraulic height of 22 feet. With a spillway width of 36 feet and a maximum discharge capacity of 1000 cubic feet per second, the reservoir is equipped to handle high hazard potential situations.
Although categorized as having a moderate risk level, Okinawa Reservoir remains an essential water source for the community, highlighting the importance of sustainable water resource management in the face of climate change challenges. As enthusiasts in water resources and climate, understanding the infrastructure and operation of such reservoirs is crucial in ensuring water security for future generations in the region.
Wind
Humidity
Year Completed |
1920 |
Dam Length |
470 |
Dam Height |
25 |
River Or Stream |
UNNAMED GULCH |
Primary Dam Type |
Earth |
Surface Area |
14 |
Hydraulic Height |
22 |
Drainage Area |
0.78 |
Nid Storage |
142 |
Structural Height |
29 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
29 |
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