| Dam Name | Wanapum |
| Incident Date | 7/12/2005 |
| Country | United States |
| State/Province | Washington |
| Dam Height (m) | 28.3 |
| Uncontrolled Release of the Reservoir | No |
| Dam Type | Concrete; Rockfill; Gravity |
| Detailed Dam Type | |
| Incident Type | Gate Misoperation |
| Incident Description | |
| High Level Failure Mode | |
| Lessons Learned | |
| Initiating Event | |
| Initiating Event Description | |
| Structures/Components | |
| Failure Mode Description | |
| Emergency Action Plan Implemented | Not reported |
| Consequences | View Consequence Data |
| Geographic Coordinates - Decimal Degrees | 46.8731, -119.9703 |
| Normal Reservoir Storage (m3): | |
| Crest Elevation (m) |