Heavy Civil GCCM Services for Black Diamond Trunk Capacity Upgrade

Agency: King County
State: Washington
Type of Government: State & Local
NAICS Category:
  • 237310 - Highway, Street, and Bridge Construction
  • 237990 - Other Heavy and Civil Engineering Construction
  • 541330 - Engineering Services
Posted Date: Aug 15, 2025
Due Date: Sep 11, 2025
Solicitation No: KC001443
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Description
Abstract: Alternative Procurements KC001443,3
Title Heavy Civil GCCM Services for Black Diamond Trunk Capacity Upgrade
Solicitation Type Alternative Procurements
Status Active
Buyer Melissa Jordan
Email mejordan@kingcounty.gov
Synopsis The scope of the GC/CM contract is to increase conveyance capacity and reliability, preventing system overflows, and safeguarding public health and the environment. Preconstruction services include managing project meetings, addressing constructability and risk issues, providing cost estimates and construction plans, exploring cost-saving options, supporting small businesses, and collaborating on logistics, scheduling, and permitting.
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
KC001443-rfp-addendum-3.pdf (174.6 KB)
KC001443-rfp-addendum-1.pdf (413.42 KB)
KC001443-rfp-documents.zip (9.96 MB)
KC001443-rfp-addendum 2.pdf (244.21 KB)
Open Date 8/14/25 06:35:19 PM
Close Date 9/11/25 01:30:59 PM
Posting Date 8/15/25
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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