Swanzy Lake
California — Solano County — Offstream
Location
| State | California |
| County | Solano |
| River | Offstream |
| Coordinates | 38.07650, -122.22730 |
Physical Characteristics
| NID Height | 86 ft |
| Dam Height | 86 ft |
| Dam Length | 375 ft |
| NID Storage | 107 acre-ft |
| Max Storage | 107 acre-ft |
| Surface Area | 4 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Poor |
| EAP Status | Yes |
| Last Inspection | October 1, 2025 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 1931 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | City of Vallejo |
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.