Wahiawa Dam
Dam in Honolulu County, Hawaii · Kaukonahua Stream · forms Wahiawa Reservoir
Height
98 ft
30 m (NID height)
Length
660 ft
201 m
Completed
1906
Wahiawa Reservoir today
54.13 ft
7 days ▲ 0.68 ft
Normal storage
7,761 acre-ft
Much below normal for the date
Reservoir level measured Oct 23, 2026, 11:35 AM HST. Full level page →
Facts
- Purposes
- Irrigation
- Dam type
- Earth
- Structural height
- 98 ft
- Owner
- Private
- Maximum storage
- 9,200 acre-ft
- Surface area
- 302 acres
- Hydraulic height
- 88 ft
- Drainage area
- 17 sq mi
- Spillway
- Controlled, 205 ft wide
- Army Corps district
- Honolulu District
- Also known as
- Lake Wilson;Wilson Reservoir
- NID ID
- HI00017
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID HI00017 at nid.sec.usace.army.mil. Project website.