Road Conditions in Washington State

Travel Impacts Including Traffic, Construction, and Weather

Seattle Skyline with Traffic
Getty Images/Carl Larson Photography

Whether you're traveling on Washington's urban arterials, the highways, or the backroads, it's a good idea to find out about road conditions before you head out on a trip of any length. Any number of things can go wrong and mess with the flow of traffic, and they usually do. In the warmer months, it can be construction, rock slides, or forest fires. Winter brings icy mountain passes, flooded valleys, mudslides, and avalanches. Any time of year it could be a big concert or sporting event, or an accident or crime scene that impacts transportation on Washington roads.

Here are some resources to help you learn about the latest road conditions in Washington state:

Alerts and News for Washington State Roads

  • Travel Alerts and Slowdowns
    Organized by location, highway, and impact level, this Washington State Department of Transportation (WSDOT) travel alert web page provides the latest information about anything related to roads, construction project, and traffic flow in Washington State.
  • King County Road Alerts
    Up-to-date information about anything that might close or restrict King County roads and bridges.

Construction on Washington State Roads

Mountain Pass Conditions in Washington State

  • WSDOT Mountain Pass Reports
    Will you need chains? Is the highway icy or dry? Is it even open? Click on the interactive map to get current pass reports, webcam views, weather conditions, and information about any restrictions. You will also find information about mountain pass closure and opening dates, snow accumulation, and avalanche dangers.
  • Avalanche Forecasts
    The Northwest Weather and Avalanche Center provides the latest information about snow accumulations and avalanche dangers along Washington's mountain roads and highways.

    Traffic Conditions in Washington State

    • Statewide Traffic Cameras
      A detailed list of all the traffic cams in the state, listed by freeway, highway, road, or intersection. Small town cams are also included.
    • Seattle Area Traffic
      WSDOT's color-coded, real-time map lets you know how traffic is currently flowing throughout the Seattle region - green is good, red is bad, and black is really really bad. Clickable camera icons allow you to get current webcam views from specific locations.
    • King County Traffic Cams
      Live webcam views of key roads and intersections throughout Seattle and King County.
    • Canadian Border Traffic and Wait Times
      Current northbound wait times and traffic flow, including webcam views, are provided for the Canadian border crossings at the Northwest corner of Washington state.

    Smart Phone Apps

    Nothing beats having access to the latest road conditions from the moment you sit down in your vehicle. These phone apps will give you real-time information.

    • The WSDOT App
      A handy central resource for the full range of traffic and road conditions in Washington State, including traffic maps, mountain pass reports, ferry wait times and status, border wait times, and toll rates. Available for iPhones, Android, and Windows phones.

    Bottom line: Know before you go! You'll save yourself a lot of potential stress and your trip will be that much more enjoyable.