Wailuku Water Reservoir 6

Maui, Hawaii· Earth· 33 ft tall
High Hazard Irrigation Private

Key Takeaway

Wailuku Water Reservoir 6 is classified as high hazard in Hawaii. Its primary use is irrigation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 33 ft (taller than 45.7% in HI)
Dam Length1,150 ft
Dam TypeEarth
Max Storage56 acre-ft
Normal Storage35 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Year Modified2006
NID IDHI00150

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: October 26, 2021
State Regulated: Yes
Regulatory Agency: DLNR

Ownership

Waikapu Gardens Homeowners Association

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Wailuku Water Reservoir 6?

Wailuku Water Reservoir 6 is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Wailuku Water Reservoir 6?

Wailuku Water Reservoir 6 is owned by Waikapu Gardens Homeowners Association (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Wailuku Water Reservoir 6?

Wailuku Water Reservoir 6 serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Wailuku Water Reservoir 6?

Wailuku Water Reservoir 6 has a dam height of 33 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Wailuku Water Reservoir 6 last inspected?

Wailuku Water Reservoir 6 was last inspected on October 26, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.