Upcoming Traffic Revisions for the Columbia St 2-Way Transit Corridor Project on March 28

Work on the Columbia Street 2-Way Corridor Project continues.

We’re advising travelers that Columbia Street will be reduced to one travel lane between 2nd and 3rd Avenues on Wed, March 28, between 9 AM and 3 PM.

This work is in partnership with King County Metro in preparation to convert Columbia Street from a 1-way street to a 2-way transit pathway. The work includes complete street reconstruction to accommodate buses, new signal poles, and curb line changes.

NOTE: This work is weather-dependent and subject to change.


What you can expect.

From 9 AM to 3 PM on March 28 travelers can expect:


  • Columbia Street will be reduced to one travel lane between 1st and 2nd Avenues.
  • Westbound Columbia Street traffic will be rerouted between 2nd and 3rd Avenues.
  • Signed detours will be in place.
  • One traffic lane will be maintained around the work zone.
  • Local access will be maintained.
  • Temporary pedestrian detours between 1st and 2nd Avenues.
  • There will be No Parking or Loading Zones in the work zone during construction.
  • Vehicles traveling on Columbia Street may experience delays near the work zone.
  • Construction-related noise, dust, vibration, and concrete odor.


For more information on this project, please visit Columbia Street 2-Way Transit Corridor Project website.


Contact Us!

If you have questions or concerns, please contact the Columbia 2-Way Project team at columbia@seattle.gov, or 206.316.2545.

Thank you for your patience while this work is completed.