4th Ave S Over ARGO Bridge Repair

Agency: City of Seattle
State: Washington
Type of Government: State & Local
NAICS Category:
  • 237310 - Highway, Street, and Bridge Construction
Posted Date: Jul 1, 2026
Due Date: Aug 5, 2026
Solicitation No: PW#2024-017
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Description


Project ID: PW#2024-017

Title: 4th Ave S Over ARGO Bridge Repair

Addenda: 0

Release Date: 7/1/2026

Due Date: 8/5/2026

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4th Ave S Over ARGO Bridge Repair
Public Works
Project ID: PW#2024-017
Release Date: Wednesday, July 1, 2026
ยท Due Date: Wednesday, August 5, 2026 2:00pm
Posted Wednesday, July 1, 2026 12:00am
All dates & times in Pacific Time
Draft Response Events RSVP No Bid34 days, 19 hours, 54 minutes


Post Information

Posted At:Wed, Jul 1, 2026 12:00 AM
Sealed Bid Process:Yes (Bids Sealed / Pricing Sealed)
Private Bid:No
Overview


Summary

Project Description: This project rehabilitates the existing 4th Ave S over ARGO Bridge pier corbels using a 77 day full closure of the bridge. Work involves crack injection, concrete spall repair, Carbon Fiber Reinforced Polymer strengthening, partial demolition of select corbels, increasing the depth of the concrete overhangs using new reinforced concrete connected to the existing concrete using dowels, additional of external post-tensioning, and replacement of expansion joints. Temporary traffic control and channelization will be required. For the purpose of the Bidder/Subcontractor List, this project includes Rebar Installation and Structural Steel Installation.

Engineer's Estimate: $6,700,000 to $7,000,000

Project Location: Industrial District along 4th Avenue South over the ARGO Yard; north of S Dawson St and south of S Industrial Way.



Timeline

Release Project Date:
July 1, 2026
Pre-Proposal Meeting (Non-Mandatory):
July 16, 2026, 11:00am
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Meeting ID: 258 807 910 083 528, Passcode: cR3Cq7yP
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Question Submission Deadline:
July 30, 2026, 5:00pm
Bid Open Date:
August 5, 2026, 2:00pm
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