Contract summary
The project will construct a four-lane Diverging Diamond Interchange (DDI) at the I-90 and SR 18 interchange in combination with the widening of SR 18 to four lanes to improve traffic operations and safety and reduce congestion at the I-90 and SR 18 interchange and along the SR 18 mainline.
Publication Date
Contract status
Awarded
Contract ID
009572
County
King County
Submittal due date and time
Estimated value
$85,000,000-$110,000,000
Funding source
A state project with a 26% voluntary minority/small/veteran/women business enterprise goal
Contact
- Award status: awarded 01/26/2022
- Award amount: $125,688,000.00
- Awarded to: Aecon Pacific Northwest, Inc.
19020 33rd Ave W, Suite 240
Lynnwood, WA 98036-4756
Submitted statements of qualifications and proposals
Submitted statements of qualifications and proposals (FTP Directory) - Posted 3/17/2022
Conformed request for proposal
- Instructions to Proposers (PDF 2MB) - Posted 3/10/2021
- Chapter 1 (PDF 5MB) - Posted 3/10/2021
- Chapter 2 (PDF 12MB) - Posted 3/10/2021
- Appendices (FTP DIRECTORY) - Posted 3/10/2021
Price proposal bid opening results
- Best value determination (PDF 69KB) - posted 1/12/2022
- Bid tabulation (PDF 14KB) - posted 1/26/2022
RFP question & answer
- Q&A1 (PDF 49KB) - Posted 8/31/2021
- Q&A2 (PDF 82KB) - Posted 10/22/2021
- Q&A3 (PDF 171KB) - Posted 11/5/2021
RFP addenda
- Addendum 1 (FTP Directory) - Posted 8/23/2021
- Addendum 2 (FTP Directory) - Posted 9/2/2021
- Addendum 3 (FTP Directory) - Posted 9/10/2021
- Addendum 4 (FTP Directory) - Posted 9/21/2021
- Addendum 5 (FTP Directory) - Posted 10/5/2021
- Addendum 6 (FTP Directory) - Posted 10/18/2021
- Addendum 7 (FTP Directory) - Posted 10/26/2021
- Addendum 8 (PDF 245KB) - Posted 11/5/2021
Request for proposal
- Instructions to Proposers (PDF 585KB) - Posted 8/2/2021
- Chapter 1 (PDF 3.6MB) - Posted 8/2/2021
- Chapter 2 (PDF 13.6MB) - Posted 8/2/2021
- Contract Form (PDF 162KB) - Posted 8/2/2021
- Appendices (FTP DIRECTORY) - Posted 8/2/2021
Voluntary proposers meeting
- Voluntary Proposers Meeting Announcement (PDF 103KB) - Posted 8/3/2021
Procurement update
- Procurement Update (PDF 151KB) - Posted 11/19/2020
- Procurement Update (PDF 93KB) - Posted 11/6/2020
- Procurement Update (PDF 162KB) - Posted 11/23/2020
- Procurement Update (PDF 178KB) - Posted 7/12/2021
Short listed submitters
- Short List Letter (PDF 162KB) - Posted 11/23/2020
Procurement update
- Procurement Update (PDF 151KB) - Posted 11/19/2020
- Procurement Update (PDF 93KB) - Posted 11/6/2020
- Procurement Update (PDF 162KB) - Posted 11/23/2020
Submitters list
-
Submitters List with Single Point of Contact (PDF 105KB) - Posted 9/23/2020
RFQ addenda
- Addendum 1 (PDF 153KB) - Posted 7/14/2020
- Addendum 2 (PDF 104KB) - Posted 7/22/2020
- Addendum 3 (PDF 114KB) - Posted 7/29/2020
- Addendum 4 (PDF 122 KB) - Posted 8/6/2020
- Addendum 5 (PDF 121KB) - Posted 8/25/2020
RFQ question & answer
- Q&A 1 (PDF 125KB) - Posted 7/13/2020
- Q&A 2 (PDF 111KB) - Posted 7/22/2020
- Q&A 3 (PDF 113KB) - Posted 8/27/2020
Voluntary submitters meeting
- Sign in Sheet (PDF 105KB) - Posted 7/13/2020
- Presentation (PDF 3.6MB) - Posted 7/13/2020
Request for qualifications
- Request for Qualifications (PDF 419KB) - Posted 6/30/2020
- Fillable Form A (DOCX 51KB) - Posted 6/30/2020
- Fillable Form B1 (DOCX 51KB) - Posted 6/30/2020
- Fillable Form B2 (DOCX 51KB) - Posted 6/30/2020
- Fillable Form C (DOCX 51KB) - Posted 6/30/2020
- Fillable Form D (DOCX 51KB) - Posted 6/30/2020
Project information available
- Advertisement Notice (PDF 242KB) - Posted 6/29/2020
- Fact Sheet (PDF 503KB) - Posted 6/29/2020
- Register for the Zoom Voluntary Submitters Meeting (PDF 91KB) - Posted 6/29/2020
- Scope Options Schematic (PDF 661KB) - Posted 6/30/2020