Big Sage
California — Modoc County — Rattlesnake Cr
Location
| State | California |
| County | Modoc |
| River | Rattlesnake Cr |
| Coordinates | 41.57780, -120.62770 |
Physical Characteristics
| NID Height | 49 ft |
| Dam Height | 49 ft |
| Dam Length | 680 ft |
| NID Storage | 77,000 acre-ft |
| Max Storage | 77,000 acre-ft |
| Surface Area | 5,270 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Satisfactory |
| EAP Status | No |
| Last Inspection | April 22, 2025 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 1921 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | Public Utility |
| Owner | Hot Spring Valley Water District |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.