Eaton H. Magoon Lake
California — Napa County — Routan Creek
Location
| State | California |
| County | Napa |
| River | Routan Creek |
| Coordinates | 38.73360, -122.43840 |
Physical Characteristics
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 925 ft |
| NID Storage | 3,760 acre-ft |
| Max Storage | 3,760 acre-ft |
| Surface Area | 246 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | October 13, 2025 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 1965 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | Langtry Farms, LLC |
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.