Annadel No. 1
California — Sonoma County — Spring Creek
Location
| State | California |
| County | Sonoma |
| River | Spring Creek |
| Coordinates | 38.42710, -122.63440 |
Physical Characteristics
| NID Height | 67 ft |
| Dam Height | 67 ft |
| Dam Length | 400 ft |
| NID Storage | 395 acre-ft |
| Max Storage | 395 acre-ft |
| Surface Area | 35 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Fair |
| EAP Status | Yes |
| Last Inspection | October 30, 2025 |
| Inspection Frequency | 1 |
Dam Information
| Year Completed | 1956 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | State |
| Owner | California Department of Parks and Recreation |
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.