Mau Reservoir
High HazardPoor ConditionEmergency Action Plan: Yes
Location
| County | Kauai |
| Nearest City | Kalaheo |
| River/Stream | KALAHEO GULCH |
| Coordinates | 21.92719, -159.53097 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 460 ft |
| Year Completed | 1901 (125 years old) |
Storage & Hydraulics
| NID Storage | 78 acre-ft |
| Max Storage | 78 acre-ft |
| Normal Storage | 67 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BBCP Kauai Operating, LLC |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 07/31/2025 |
| Emergency Action Plan | Yes |