Lake Orinda
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| County | Contra Costa |
| Nearest City | Orinda |
| River/Stream | Cascade Creek |
| Coordinates | 37.89160, -122.18840 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 45 ft |
| Dam Length | 360 ft |
| Year Completed | 1935 (91 years old) |
Storage & Hydraulics
| NID Storage | 111 acre-ft |
| Max Storage | 111 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 474 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Orinda Country Club |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/15/2025 |
| Emergency Action Plan | Yes |