John Orr
California — Amador County — Tr Jackson Cr
Location
| State | California |
| County | Amador |
| River | Tr Jackson Cr |
| Coordinates | 38.29750, -120.97320 |
Physical Characteristics
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 590 ft |
| NID Storage | 152 acre-ft |
| Max Storage | 152 acre-ft |
| Surface Area | 36 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Satisfactory |
| EAP Status | No |
| Last Inspection | March 18, 2025 |
| Inspection Frequency | 0.5 |
Dam Information
| Year Completed | 1959 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | Chris H. and Fay E. Gansberg |
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.