Clearwell Phase 2
California — Contra Costa County — Grayson Creek
Location
| State | California |
| County | Contra Costa |
| River | Grayson Creek |
| Coordinates | 38.00380, -122.06740 |
Physical Characteristics
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 2,090 ft |
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Surface Area | 6 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Satisfactory |
| EAP Status | No |
| Last Inspection | February 27, 2025 |
| Inspection Frequency | 0.5 |
Dam Information
| Year Completed | 1977 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | Public Utility |
| Owner | Central Contra Costa Sanitary District |
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.