Located in Pukalani, Maui, Hawaii, Maui Reservoir 40, also known as Hc&S Reservoir 40, is a privately owned water storage structure primarily used for irrigation purposes.
Wind
Humidity
Built in 1926, this earth dam stands at a height of 42 feet with a storage capacity of 165 acre-feet. The reservoir covers a surface area of 13.5 acres and serves as a critical water source for agricultural activities in the region.
Managed by the Hawaii Department of Land and Natural Resources (DLNR), Maui Reservoir 40 is subject to state regulation, inspection, and enforcement to ensure its safe operation. Despite being classified as having a high hazard potential, the dam is currently assessed to be in fair condition, with the last inspection conducted in June 2015. With a moderate risk assessment rating of 3, the reservoir is equipped with an uncontrolled spillway and has a drainage area of 0.07 square miles.
Enthusiasts of water resources and climate in Maui will find Maui Reservoir 40 to be an intriguing structure, offering insights into the management of water for irrigation in the region. With its historical significance and vital role in supporting agricultural practices, this reservoir serves as a noteworthy example of water infrastructure in Hawaii, highlighting the importance of sustainable water resource management and regulatory oversight in ensuring the safety and reliability of water storage facilities.
Year Completed |
1926 |
Dam Length |
810 |
Dam Height |
42 |
River Or Stream |
KALIALINUI GULCH OFFSTREAM |
Primary Dam Type |
Earth |
Surface Area |
13.5 |
Hydraulic Height |
24 |
Drainage Area |
0.07 |
Nid Storage |
165 |
Structural Height |
47 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
47 |