Ob-3 Secondary Containment Berm
Washington, Adams County, Offstream
Location
| State | Washington |
| County | Adams |
| River | Offstream |
| Coordinates | 46.99880, -118.92030 |
Physical Characteristics
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 635 ft |
| NID Storage | 670 acre-ft |
| Max Storage | 670 acre-ft |
| Surface Area | 33 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Poor |
| EAP Status | No |
| Last Inspection | October 17, 2025 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | - |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | OB-3 Resource Management, LLC |
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.