Nuuanu Reservoir No. 1
Hawaii — Honolulu County
Location
| State | Hawaii |
| County | Honolulu |
| Coordinates | 21.33968, -157.83740 |
Physical Characteristics
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 588 ft |
| NID Storage | 64 acre-ft |
| Max Storage | 64 acre-ft |
| Surface Area | 6 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Poor |
| EAP Status | Yes |
| Last Inspection | April 4, 2024 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1905 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | Honolulu Board of Water Supply |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.