Matanzas Creek
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| County | Sonoma |
| Nearest City | Santa Rosa |
| River/Stream | Matanzas Creek |
| Coordinates | 38.40630, -122.65200 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 95 ft |
| Dam Height | 95 ft |
| Dam Length | 685 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 1,500 acre-ft |
| Max Storage | 1,500 acre-ft |
| Surface Area | 62 acres |
| Drainage Area | 11 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Sonoma County Water Agency |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/15/2025 |
| Emergency Action Plan | Yes |