Heavy Civil GCCM Services for Influent Conveyance/Effluent Conveyance & Outfall

Agency:	King County
State:	Washington
Type of Government:	State & Local
NAICS Category:	237110 - Water and Sewer Line and Related Structures Construction 237310 - Highway, Street, and Bridge Construction 237990 - Other Heavy and Civil Engineering Construction 541330 - Engineering Services
Posted Date:	Jan 15, 2026
Due Date:	Jan 27, 2026
Solicitation No:	KC001493
Original Source:	Please Login to View Page
Contact information:	Please Login to View Page
Bid Documents:	Please Login to View Page

Abstract: Alternative Procurements KC001493,4

Title

Solicitation Type

Alternative Procurements

Status

Active

Buyer

Jennifer Sebero

jsebero@kingcounty.gov

Synopsis

Provide preconstruction services and construct the Influent Conveyance, Effluent Conveyance, and Outfall to route combined sewer and stormwater to and from the future Wet Weather Treatment Station.

Addendum Description

Addendum 4 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

KC001493-rfp-addendum-4.pdf (951.12 KB)

KC001493-rfp-addendum-2.pdf (214.37 KB)

KC001493-rfp-documents.zip (6.24 MB)

KC001493-rfp-addendum-1.pdf (198.11 KB)

KC001493-rfp-addendum-3.pdf (2.03 MB)


Open Date	1/15/26 01:22:10 PM
Close Date	1/27/26 01:30:59 PM
Posting Date	1/15/26

Additional Information


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


Department	NATURAL RESOURCES AND PARKS
Division	WASTEWATER TREATMENT

O K

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