SR 18 - EB Soosette Creek to Holder Creek - Paving & Deck Overlay

Project news

  • Construction work is underway. For updated closure information, check our construction webpage.
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Needs & Benefits

Eastbound State Route 18 between Southeast 304th Street in Auburn and Southeast 256th Street in Convington needs to be repaired after years of heavy traffic has created ruts and cracks in the roadway. In 2019, WSDOT contractor crews will grind off about two inches of asphalt and repave it. This will reduce the need for costly, disruptive repairs on a section of highway used by approximately 25,000 vehicles daily.

The westbound SR 18 overpass at Issaquah-Hobart Road was last repaved in 1996, and is very rough with dozens of pothole patches. Removing the existing driving surface and repaving the overpass will provide a smoother ride for travelers who use this stretch of the highway. These repairs will also will preserve and protect the bridge structure, which is especially important for the 12,000 vehicles who use this overpass each day.

This project’s benefits include:

  • Safety: Eliminating ruts and cracks in the pavement will reduce the opportunity for water to collect on the roadway, which can reduce traction for vehicles.
  • Economic/Preservation: Repaving this section of SR 18 will preserve the highway structure and reduce the need for costly emergency repairs.

What should travelers expect?

Most of the grinding and repaving work on eastbound SR 18 will take place during overnight lane and ramp closures. At least one lane will remain open at all times and access to businesses along the corridor will be maintained. During ramp closures for repaving work, travelers should plan extra time to follow signed detours. Until grinding begins, portions of the road could feel bumpy to those traveling through the area. 

In order to complete repaving work on the westbound SR 18 overpass, contractor crews will close a single lane of the highway at Issaquah-Hobart Road around-the-clock for up to 65 days. All westbound lanes may also be closed during the overnight hours. Travelers using the highway at that time will detour via the Issaquah-Hobart Road off- and on-ramps, with a uniformed police officer directing traffic at the intersection. 


  • November 2018: Project was advertised for competitive bidding. 
  • December 2018: Project was awarded to Tucci & Sons Inc.
  • April 2019: Construction began.
  • Fall 2019: Construction is scheduled to be complete.


Financial Data for PIN 101808C
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $3,141
Pre-Existing Funds (PEF) $188
CWA $0
Total $3,330


Nicole Daniels
WSDOT Communications

SR 18 Soosette Creek to Holder Creek Paving and Deck Overlay - Project Map