Piwai Reservoir
High HazardPoor ConditionEmergency Action Plan: Yes
Location
| County | Kauai |
| Nearest City | OMAO HOMESTEADS |
| River/Stream | POELELELE STREAM |
| Coordinates | 21.93275, -159.49040 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 56 ft |
| Dam Height | 56 ft |
| Dam Length | 535 ft |
| Year Completed | 1916 (110 years old) |
Storage & Hydraulics
| NID Storage | 261 acre-ft |
| Max Storage | 261 acre-ft |
| Normal Storage | 222 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 480 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Alexander & Baldwin, Inc. |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 05/06/2025 |
| Emergency Action Plan | Yes |