Red Rock No. 1
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| County | Lassen |
| River/Stream | Red Rock Creek |
| Coordinates | 40.96780, -120.13800 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 63 ft |
| Dam Height | 63 ft |
| Dam Length | 485 ft |
| Year Completed | 1893 (133 years old) |
Storage & Hydraulics
| NID Storage | 10,000 acre-ft |
| Max Storage | 10,000 acre-ft |
| Surface Area | 491 acres |
| Drainage Area | 43 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Dodge Ranch LLC |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/26/2025 |
| Emergency Action Plan | Yes |