| 520 Bridge (Evergreen Point Floating Bridge) |
| Carriers Washington State Route 520 traffic across Lake Washington connecting Seattle, WA to its eastern suburbs. |
| Bridge of the Gods |
| Spans the Columbia River connecting Cascade Locks, OR to North Bonneville, WA. |
| Hood River Bridge |
| Spans the Columbia River connecting Hood River, OR with the communities of White Salmon and Bingen, WA. |
| Seattle SR 99 Tunnel |
| A 2-mile tunnel that carries traffic under downtown Seattle, WA connecting the sports stadiums with the Space Needle. |
| Tacoma Narrows Bridge |
| Spans the Tacoma Narrows strait of Puget Sound connecting the city of Tacoma, WA with the Kitsap Peninsula. |