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

Location: Washington
Posted: Jun 22, 2026
Agency: King County
Type of Contract: Awards
Type of Government: State & Local
Category:
  • C - Architect and Engineering Services - Construction
Solicitation No: KC001493
Publication URL: To access bid details, please log in.
Abstract: Alternative Procurements KC001493-2,1
Title Heavy Civil GCCM Services for Influent Conveyance/Effluent Conveyance & Outfall
Solicitation Type Alternative Procurements
Status Awarded
Buyer Jillian Decoteau
Email jdecoteau@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 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, acknowledge the addendum, and resubmit the proposal.
Attachments
KC001493-rffp-addendum-1.pdf (3.1 MB)
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)
KC001493-rffp-documents.zip (10.93 MB)
Open Date 3/30/26 04:56:19 PM
Close Date 4/15/26 01:30:59 PM
Posting Date 6/22/26
Award Notice Download
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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