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Alternative Procurementsopen🌐 King County, WAKC001590-2,1

Heavy Civil GC/CM Services for MDCSO Chelan Wet Weather Storage Project

King County

Description

King County (County) requests final proposals from firms interested in providing Heavy Civil GC/CM Services for Mouth of Duwamish Combined Sewer Overflow (MDCSO) Chelan Wet Weather Storage Project. This is a project specific GC/CM. The Contractor may be responsible for multiple early work packages over the life of the GC/CM contract. NOTE: Submittals for RFFP phase will only be accepted from Finalists invited to the solicitation.

Details

Posted
Jun 24, 2026
Response deadline
Jul 8, 2026, 8:30 PM UTC
Type
Alternative Procurements
Status
open
Buyer
King County
Jurisdiction
King County, WA
Reference #
KC001590-2,1
Synopsis
King County (County) requests final proposals from firms interested in providing Heavy Civil GC/CM Services for Mouth of Duwamish Combined Sewer Overflow (MDCSO) Chelan Wet Weather Storage Project. Th
Time Remaining
14 Hours 17 Minutes
Attachments Count
5
Negotiation Status
Active
Time Remaining Order
0.5952314814814815
Amendment Description
Addendum 1 has been issued. Suppliers must acknowledge all addenda before submitting a proposal. If a supplier has already submitted a proposal, they MUST log into the E-Procurement Supplier Portal, a

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This listing is a summary from King County, WA's open procurement data. We ingest every field the feed publishes; the full solicitation documents are on the source portal.