Maui Reservoir 81, also known as Hc&S Reservoir 81, is a private water storage facility located in Waiakoa Homesteads, Maui, Hawaii.
Wind
Humidity
Built in 1920 for irrigation purposes, the reservoir has a capacity of 125 acre-feet and covers a surface area of 13.8 acres. Fed by an irrigation ditch, the reservoir stands at a height of 24 feet with a dam length of 1500 feet.
Managed by the state regulatory agency DLNR, Maui Reservoir 81 has a high hazard potential but is currently assessed to be in fair condition. Regular inspections are conducted, with the last one completed in March 2020. The reservoir's spillway type is uncontrolled, with a width of 67 feet, and it has a moderate risk assessment rating of 3. While the facility meets state permitting and inspection requirements, its emergency action plan status and risk management measures are unspecified.
For water resource and climate enthusiasts, Maui Reservoir 81 serves as a vital infrastructure supporting agricultural activities in the region. With its historical significance dating back a century, the reservoir continues to play a crucial role in sustaining the local ecosystem and economy. As efforts to enhance water management and safety measures progress, the future of this reservoir remains essential for ensuring water security and environmental resilience in Maui.
Year Completed |
1920 |
Dam Length |
1500 |
Dam Height |
19 |
River Or Stream |
FED BY IRRIGATION DITCH |
Primary Dam Type |
Earth |
Surface Area |
13.8 |
Hydraulic Height |
20 |
Drainage Area |
0.07 |
Nid Storage |
125 |
Structural Height |
24 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
24 |