// Risk Intelligence
| Risk Score | 7 / 10 High |
| Facility Type | 🌊 Major Dam / Flood Control |
| Operator / Branch | US Army Corps of Engineers |
| Host County | Wasco County OR |
| Nearest City | Pepperell MA |
| Primary Risk Radius | 20 miles |
| Secondary Risk Radius | 100 miles |
// Strategic Significance
The Dalles Dam on the Columbia River flooded Celilo Falls the oldest continuously inhabited site in North America when it was completed in 1957. It is a critical hydroelectric facility and navigation lock on the Columbia River system.
// Civilian Impact Assessment
The Dalles OR with 16,000 residents sits immediately downstream. Columbia River Gorge communities face serious flooding risk from any structural failure.
// Evacuation & Shelter Guidance
I-84, US-30. Wasco County Emergency Management coordinates with Army Corps for dam emergency response.