Hog Flat
California — Lassen County — Tr Susan River
Location
| State | California |
| County | Lassen |
| River | Tr Susan River |
| Coordinates | 40.43630, -120.91220 |
Physical Characteristics
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 1,760 ft |
| NID Storage | 8,000 acre-ft |
| Max Storage | 8,000 acre-ft |
| Surface Area | 1,000 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Satisfactory |
| EAP Status | No |
| Last Inspection | August 27, 2025 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 1891 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | Lassen Irrigation Company |
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.