Boise X Connection #3055A Bridge Replacement

Agency:	King County
State:	Washington
Type of Government:	State & Local
NAICS Category:	237310 - Highway, Street, and Bridge Construction
Posted Date:	Oct 16, 2025
Due Date:	Oct 21, 2025
Solicitation No:	KC001512
Original Source:	Please Login to View Page
Contact information:	Please Login to View Page
Bid Documents:	Please Login to View Page

Abstract: Construction Solicitation KC001512,1

Title

Solicitation Type

Construction Solicitation

Status

Amended

Buyer

Leeann Snyder

lsnyder@kingcounty.gov

Synopsis

This project provides for the improvement of Boise X Connection #3055A Bridge on SE Mud Mountain Road in King County by clearing and grubbing; installing erosion control measures; cofferdams, stream diversion pipe and dewatering system; constructing bridge and walls, removal of structures and obstructions; roadway excavation including haul; removal of existing bridge and wingwall; installing shoring; construction of geosynthetic reinforced soil wall; placement of streambed materials; precast bridge construction with UHPC shear keys; surfacing with crushed surfacing base course; paving with hot mix asphalt; installing beam guardrail; stream channel and site restoration; project temporary traffic control, and other work.

Addendum Description

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

Attachments

KC001512-addendum-1.pdf (168.06 KB)

KC001512-itb-docs.zip (37.63 MB)


Open Date	10/10/25 10:46:53 AM
Close Date	10/21/25 01:30:59 PM
Posting Date	10/10/25

Additional Information


KC Solicitation NAICS Code(s)	237310
Small Business Requirements Apply?	Yes


Department	LOCAL SERVICES
Division	ROADS

O K

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