WSDOT Projects

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SR 167 - HOT Lanes Pilot Project

Status of project is in Construction phase
thumbnail of project map View HOT Lanes Map

Tour HOT lanes

shot from video simulation of an HOT Lane drive wit Rachel
Take a virtual drive in the HOT lane with Rachel. View a Computer Animation Video:
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Question of the Week

Who has to pay the toll to use HOT lanes?

Watch the signs

HOT lanes in half mile sign

See all the new signs and learn what they mean.

HOT Lane Rules

• Solo drivers must have Good To Go!

• Illegal to cross the double-white line.

• No trucks over 10,000 lbs gross vehicle weight.


Project Facts
  • Speeds in HOT lanes will be faster than 45 mph 90 percent of the time.
  • This is a four-year pilot project that converts 9 miles of carpool lane into HOT lanes.
  • There are no toll booths.

Project Status

July 2008

  • See a summary of HOT lanes traffic data.
  • The SR 167 HOT lanes have been performing well since operations began at 10:30 a.m., Saturday, May 3. Drivers have paid tolls ranging from 50 cents to $5.75 to use the lanes.
  • Get a tolling transponder or shield by calling Good To Go! customer service at 1-866-936-8246 (866-WDOT2GO). 
  • View the HOT lanes media kit, including a HOT lanes poster and brochure.
  • Learn how tolling reduces congestion and pays for highway improvements on WSDOT's new tolling Web page.
  • Send us your comments and questions.

    What are HOT Lanes?

    HOT lanes (high occupancy toll lanes) are a new option for solo drivers on SR 167. By paying an electronic toll, you can enjoy a stress-free, reliable trip in the carpool lane even when you drive alone. 

    A single HOT lane runs in each direction of SR 167 for nine miles between Renton and Auburn. The highway's two general purpose lanes in each direction remain toll free and open to all. 

    Carpools ride free
    Carpools of two people or more, vanpools, transit and motorcycles use HOT lanes toll-free just like an HOV (high occupancy vehicle) lane, and they do not need a transponder. 

    A more efficient SR 167
    When there is extra space in the HOT lane, solo drivers can pay an electronic toll using a Good To Go! transponder for a faster, more reliable trip. Adding just enough additional vehicles to the HOT lane will make the carpool lane more efficient and ease congestion in all the lanes.

    Toll rates increase and decrease with the level of congestion to ensure that traffic in the HOT lane always flows freely and carpools enjoy the same fast and reliable trip they have in HOV lanes.

    Open a Good To Go! account and take the HOT lane when you can't afford to be late.

    SR 167 drivers need to know:

    • No Double-Crossing. The HOT lane is separated from the general-purpose lanes by a double white line. It is illegal to cross the double white line. Access zones are marked by a single dashed line.
    • Watch the Signs. A sign announces a HOT lane access zone approaching a half mile before each dashed-line entrance point. Another electronic sign indicates the current toll price at the beginning of each access zone.
    • Pilot Project. HOT lanes on SR 167 is a four-year pilot project. WSDOT will be monitoring, evaluating and adjusting the system. 

    Learn more about:


    Why is WSDOT studying HOT Lanes on SR 167?

    WSDOT is always looking for innovative ways to improve traffic flow and ease congestion.
    Thanks to advances in technology, HOT lanes can help make our roads more efficient by making better use of unused space in the carpool lane.

    SR 167 connects communities between Renton and Tacoma and provides the Puget Sound region with a vital alternative to Interstate 5. It was chosen as the site for the HOT lanes pilot project because its HOV lanes are underused. 

    Learn more about other issues:

    The End Result

    The HOT lanes pilot project will help WSDOT learn how variable tolling can improve traffic flow and how to fine tune the system. WSDOT also will be asking both carpoolers and solo drivers how they feel about this the new commuting option throughout the four-year pilot period.

    In addition to opening nine miles of HOT lanes in the southbound and northbound lanes of SR 167, WSDOT plans to improve the northbound SR 167 exit ramps to I-405 as part of this project.

    Project Benefits

    • A new commute option
    • Faster, more reliable trips
    • Increased efficiency
    • Increased enforcement
    • Toll-free express trips for carpools and transit.
    • Congestion relief
    • A safer SR 167
    • Environmental improvements

    What is the project timeline?

    • The SR 167 HOT Lanes Pilot Project opened on May 3, 2008.
    • After opening, a detailed monitoring and evaluation period began.
    • WSDOT will provide annual reports to the legislature and the Transportation Commission. Resports will be available on the WSDOT Web site.

    Public Involvement

    Your thoughts and opinions are important to us. Public outreach activities will be conducted throughout the HOT Lanes Pilot Project. Outreach activities will include community meetings, focus groups and briefings to any organization that is interested in learning more about this project.

    The project team develops informational materials, such as a project folio and updates to this Web site to keep you informed about our progress. Let us know if you would like to be added to the South King County e-mail updates list, and we’ll keep you informed on projects in your area, including this one.

    The Outreach Events page will be updated with project announcements and dates when project staff will be in your community.

    Title VI: WSDOT assures full compliance with Title VI of the Civil Rights Act of 1964 by prohibiting discrimination based on race, color, national origin and sex in the provision of benefits and services. For language interpretation services please contact WSDOT at 206.382.5287. It is necessary to speak limited English so WSDOT can respond appropriately.

    For information on WSDOT's Title VI Program, please contact the Title VI Coordinator at 360.705.7098 or visit our Web site.

    Environmental Protection

    WSDOT and our study partners make every effort to identify and avoid or minimize environmental effects from our projects. This project is not expected to result in significant environmental impacts since no new lanes will be added to SR 167.

    Please visit the WSDOT Environmental Services Web site for more information.

    Increasing safety is one of our priorities

    Similar projects across the country  demonstrate that HOT lanes are safe for drivers. WSDOT has expanded the current HOV buffer from a single white stripe (eight-inch buffer) to a double-white stripe (two-foot buffer).

    It is illegal for drivers to cross the double white line and weave in and out of the HOT lanes from the general-purpose lanes.

    WSDOT is paying for additional Washington State Patrol troopers to monitor HOT lane traffic. 

    Will this project impact tribal resources?

    WSDOT seeks to address the concerns of the tribal nations using the process outlined in Section 106 of The National Historic Preservation Act and the WSDOT Tribal Consultation Policy adopted in 2003 by the Transportation Commission as part of the WSDOT Centennial Accord Plan.
    For more information, please visit the WSDOT Tribal Liaison Web site.

    Financial Information

    This project is funded through the following sources:

    • 2005 Gas Tax - $12.74 Million  
    • Federal Highway Administration - $5.13 Million
      These funds are provided through Federal Formula Funds and a grant from the Federal Highway Administration's Value Pricing Program.

      Total Funding Available from all Sources - $17.87 Million

    How can I get more information?
    HOT lanes information team
    Urban Corridors Office
    401 2nd Ave. S
    Seattle, WA 98104
    Phone: 206-464-1184

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