Rattlesnake Canyon
High HazardFair ConditionEmergency Action Plan: Yes
Location
| County | Orange |
| Nearest City | Northwood Point |
| River/Stream | Rattlesnake Canyon Wash |
| Coordinates | 33.72950, -117.74210 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 79 ft |
| Dam Height | 79 ft |
| Dam Length | 980 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 1,480 acre-ft |
| Max Storage | 1,480 acre-ft |
| Surface Area | 60 acres |
| Drainage Area | 2 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Irvine Ranch Water District |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 05/07/2025 |
| Emergency Action Plan | Yes |