Privately Funded
Bidding Soon
Documents Available
Publicly Funded
Addenda Available
Post-Bid
Published December 26, 2025 at 7:00 PM
Updated December 27, 2025
Site work and paving for a mixed-use development in Covington, Washington. Working plans call for site work for a road / highway; for paving for a road / highway; sidewalk / parking lot; sidewalk / parking lot; and water / sewer project.
The Project will widen SR 18 to a four-lane divided highway from just west of the Tiger Mountain Summit near MP 23.04 to Deep Creek at approximately MP 25.68. The project will also construct roundabouts at the SR 18/Issaquah-Hobart Road interchange ramp intersection and provide intelligent transportation system (ITS) improvements from approximately MP 19.26 to approximately MP 21.15. The work also includes, but not limited to: design and construction of fish-passable water crossing and wildlife crossing structures, including all associated stream restoration and wildlife exclusion fencing; acquisition of environmental permits; fiber optic cable installation; ITS improvements; pedestrian improvements; grading; embankment; retaining walls; paving; traffic barrier; storm water treatment; signing; illumination; erosion control; and planting. County King County Estimated value To be determined A federally funded project with condition of award disadvantaged business enterprise goals to be determined. WADOT - SR 18, Issaquah Hobart Rd to Deep Creek Vicinity - Widening and Fiber Question Deadline 11/12/2024 Deadline for Submitting RFQ Questions, Tibe Yefrashewa, tibebeselassie.yefrashewa@wsdot.wa.gov
Final Planning
Roads / Highways
$487,000,000.00
Public - State/Provincial
Paving, Site Work
Trades Specified
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January 14, 2026
July 1, 2026
WA-18, Covington, WA
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