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 6, 2026
Due Date: Jan 27, 2026
Solicitation No: KC001493
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Description
Abstract: Alternative Procurements KC001493,3
Title Heavy Civil GCCM Services for Influent Conveyance/Effluent Conveyance & Outfall
Solicitation Type Alternative Procurements
Status Active
Buyer Melissa Jordan
Email mejordan@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 3 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-3.pdf (2.03 MB)
KC001493-rfp-addendum-1.pdf (198.11 KB)
KC001493-rfp-documents.zip (6.24 MB)
KC001493-rfp-addendum-2.pdf (214.37 KB)
Open Date 1/6/26 09:19:11 AM
Close Date 1/27/26 01:30:59 PM
Posting Date 1/6/26
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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