Heavy Civil GC/CM Services for MDCSO Chelan Wet Weather Storage | Washington Government Bid

Agency:	King County
State:	Washington
Type of Government:	State & Local
NAICS Category:	236220 - Commercial and Institutional Building Construction 237310 - Highway, Street, and Bridge Construction 237990 - Other Heavy and Civil Engineering Construction 541330 - Engineering Services 541990 - All Other Professional, Scientific, and Technical Services
Posted Date:	Apr 10, 2026
Due Date:	Apr 20, 2026
Solicitation No:	KC001590
Original Source:	Please Login to View Page
Contact information:	Please Login to View Page
Bid Documents:	Please Login to View Page

Abstract: Alternative Procurements KC001590,1

Title

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

Solicitation Type

Alternative Procurements

Status

Amended

Buyer

Leeann Snyder

lsnyder@kingcounty.gov

Synopsis

King County (County) requests 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.

Addendum Description

Addendum 1 has been issued.
Proposers must acknowledge all addenda before submitting a proposal. If a Proposer has already submitted a proposal, they must log into the E-Procurement Supplier Portal, acknowledge the addendum, and resubmit.

Attachments

KC001590-addendum-1.pdf (1.12 MB)

KC001590-rfp-documents.zip (7.15 MB)


Open Date	4/7/26 04:41:18 PM
Close Date	4/20/26 01:30:59 PM
Posting Date	4/7/26

Additional Information


KC Solicitation NAICS Code(s)	237990;237110;541330
Small Business Requirements Apply?	Yes


Department	NATURAL RESOURCES AND PARKS
Division	WASTEWATER TREATMENT

O K

* Disclaimer: This website provides information about bids, requests for proposals (RFPs), or requests for qualifications (RFQs) for convenience only and does not serve as an official public notice. Individuals who wish to respond to or inquire about bids, RFPs, or RFQs should contact the relevant government department directly.

Sign-up for a Free Trial, Government Bid Alerts

With Free Trial, you can:

You will have a full access to bids, website, and receive daily bid report via email and web.

Try One Week FREE Now

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

Sign-up for a Free Trial, Government Bid Alerts

See Also