Kaawanui Reservoir, located in Kaawanui Village, Hawaii, is a private-owned earth dam primarily used for irrigation purposes.
Wind
Humidity
Completed in 1950, this reservoir stands at a height of 26 feet and has a storage capacity of 110 acre-feet, with a normal storage level of 83 acre-feet. The reservoir covers a surface area of 9.2 acres and has a controlled spillway with a width of 4 feet. It is situated on the KAAWANUI GULCH OFFSTREAM and falls under the jurisdiction of the state regulatory agency, DLNR.
Despite its fair condition assessment, Kaawanui Reservoir poses a high hazard potential, with a risk assessment ranking of very high (1). The last inspection was conducted in February 2018, with a scheduled inspection frequency of every 5 years. While the dam itself is structurally sound, the high hazard potential indicates the need for regular monitoring and maintenance to ensure the safety of surrounding communities and the efficient management of water resources. With the regulatory agency overseeing permitting, inspection, and enforcement, Kaawanui Reservoir plays a crucial role in supporting irrigation activities in the region.
Year Completed |
1950 |
Dam Length |
2560 |
Dam Height |
26 |
River Or Stream |
KAAWANUI GULCH OFFSTREAM |
Primary Dam Type |
Earth |
Surface Area |
9.2 |
Hydraulic Height |
20 |
Drainage Area |
0.01 |
Nid Storage |
110 |
Structural Height |
25 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
26 |
Waimea River Nr Waimea
|
295cfs |
Waialae Str At Alt 3
|
34cfs |
Kawaikoi Stream Nr Waimea
|
30cfs |
Wainiha River Nr Hanalei
|
178cfs |
Eb Of Nf Wailua River Nr Lihue
|
39cfs |
Sf Wailua River Nr Lihue
|
173cfs |
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