BetterBridge.org
Website by two designers of a proposed replacement of the State Route 520 Evergreen Point Bridge in the Seattle vicinity. Includes diagrams and press coverage.
Northwest Highways
Information and photos on roads in Washington, Oregon, Idaho, and northern California.
Seattle Area Transportation
Information on community transit, Metro online, van- and carpooling, bicycling programs, speed traps, Department of Transportation, and ferry services.
Washington State Department of Transportation
Official site. Includes traffic flow maps and cameras, mountain pass reports, ferry and train schedules, emergency highway closures, construction updates, and major project information.
Washington State Highways
Gives text descriptions and locator maps for state-numbered routes.