Waiakalua Reservoir, located in Kilauea, Hawaii, is a private-owned structure used primarily for irrigation purposes.
Wind
Humidity
Completed in 1920, this earth dam stands at a height of 26 feet and has a storage capacity of 220 acre-feet. With a normal storage level of 184 acre-feet, the reservoir covers a surface area of 13.3 acres and serves as a vital water source for the surrounding area.
Despite its historical significance, Waiakalua Reservoir faces challenges in terms of its condition assessment, with a poor rating and high hazard potential. The last inspection in 2018 revealed the need for improvements, highlighting the importance of regular maintenance and upkeep to ensure the safety and functionality of the structure. Additionally, the risk assessment indicates a moderate level of risk associated with the reservoir, emphasizing the need for proactive risk management measures.
As a key component of the local water resource infrastructure, Waiakalua Reservoir plays a crucial role in supporting agricultural activities in the region. With its location along the Waiakalua Stream and proximity to Honolulu District, the reservoir not only provides irrigation water but also contributes to the overall water management efforts in Kauai, Hawaii. Moving forward, continued monitoring, maintenance, and risk mitigation strategies will be essential to safeguard the reservoir and ensure its long-term sustainability in the face of evolving climate conditions.
Year Completed |
1920 |
Dam Length |
1800 |
Dam Height |
26 |
River Or Stream |
WAIAKALUA STREAM |
Primary Dam Type |
Earth |
Surface Area |
13.3 |
Hydraulic Height |
18 |
Drainage Area |
0.43 |
Nid Storage |
220 |
Structural Height |
20 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
26 |
Halaulani Str At Alt 400 Ft Nr Kilauea
|
13cfs |
Hanalei River Nr Hanalei
|
258cfs |
Left Branch Opaekaa Str Nr Kapaa
|
2cfs |
Eb Of Nf Wailua River Nr Lihue
|
39cfs |
Sf Wailua River Nr Lihue
|
173cfs |
Wainiha River Nr Hanalei
|
178cfs |
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