WSDOT - Contract Ad and Award - Project Information

I-90, SR 18 I/C to Deep Creek - Interchange Improvements & Widening Project


  • Contract Number: 9572
  • Interested Parties List:
    If you are interested in participating in this project, add your firm to our email list to receive future notices about this project.
  • For additional information on this project, please direct your inquiries to the Connecting Washington Design Project Engineer:
    Mark Allison, P.E.
    Phone: (206) 440-4578

RFQ Addenda



  • Q&A 1 (pdf 125 kb) - Posted 7/13/2020
  • Q&A 2 (pdf 111 kb) - Posted 7/22/2020

Voluntary Submitters Meeting

Request for Qualifications

Project Information Available

Last Updated: July 29, 2020