Wailua Reservoir
High HazardFair ConditionEmergency Action Plan: Yes
Location
| County | Kauai |
| Nearest City | WAILUA HOMESTEADS |
| River/Stream | WAILUA RIVER-N. FORK OFFSTREAM |
| Coordinates | 22.06340, -159.39998 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 1,080 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 842 acre-ft |
| Max Storage | 842 acre-ft |
| Normal Storage | 340 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Hawaii Dept of Land & Natural Resources |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 08/14/2025 |
| Emergency Action Plan | Yes |