Swanzy Lake
High HazardPoor ConditionEmergency Action Plan: Yes
Location
| County | Solano |
| Nearest City | City of Vallejo |
| River/Stream | Offstream |
| Coordinates | 38.07650, -122.22730 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 86 ft |
| Dam Height | 86 ft |
| Dam Length | 375 ft |
| Year Completed | 1931 (95 years old) |
Storage & Hydraulics
| NID Storage | 107 acre-ft |
| Max Storage | 107 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Vallejo |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 10/01/2025 |
| Emergency Action Plan | Yes |