Oahu Reservoir 155
High HazardPoor ConditionEmergency Action Plan: Yes
Location
| County | Honolulu |
| Nearest City | Waipahu |
| Coordinates | 21.40462, -158.05933 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 900 ft |
| Year Completed | 1916 (110 years old) |
Storage & Hydraulics
| NID Storage | 37 acre-ft |
| Max Storage | 37 acre-ft |
| Surface Area | 2 acres |
| Max Discharge | 110 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Agribusiness Development Corporation (ADC), Bayer U.S. - Crop Science, Monsanto Company, Monsanto Company |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 03/15/2025 |
| Emergency Action Plan | Yes |