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Northwest Region Strategic Concrete Bridge Deck Preservation - Complete Oct. 2024

Project overview

We repaired or replaced the concrete on 17 bridges in King, Snohomish, Skagit and Whatcom counties. Before this project, many of these concrete bridge decks had patches covering old potholes and ruts. Contractor crews removed damaged and patched areas and replaced it with new slabs of concrete. This will help preserve the integrity of the bridges, extend their lifespan, and provide a smoother ride for users.

Timeline
Fall 2021 - Fall 2024
Project status
Completed
Funding
$5.2 Million

What to expect

This project has completed construction. 

The locations of 17 bridges in King, Snohomish, Skagit and Whatcom counties that underwent bridge rehabilitation and repair work in 2022-2023.

During 2023, we repaired the decks of 17 bridges in King, Snohomish, Skagit and Whatcom counties. 

The bridges have concrete surfaces that had deteriorated over time. Many had a patchwork of repairs to fill potholes, ruts and cracks. This created a bumpy ride. In addition, water could collect in these areas and become icy during freezing temperatures.

Repairing the bridge decks by removing select areas of damaged concrete and placing a new layer will extend the service life of these bridges and provide a smoother and safer trip for highway users. 

Bridge repair locations

King County

  • Albro Street Bridge over I-5 at milepost 161.21 (complete)
  • I-5 east-north/south over street and railroad at milepost 161.31 (complete)
  • I-5 east-south ramp bridge at milepost 162.99 (complete)
  • I-5 westbound Spokane Street over I-5 at milepost 163.02 (complete)
  • I-90 southeast ramp over mainline I-90 at milepost 9.24 (complete)
  • I-90 East Fork Issaquah Creek bridge at milepost 18.58 (complete)
  • I-90 westbound Raging River bridge at milepost 23.4 (complete)
  • SR 900 Northeast Park Driver over Houser Way North at milepost 12.5 (complete)

Snohomish County

  • I-5 over SR 524 spur at milepost 180.71 (complete)
  • SR 524 Alderwood Mall overpass at milepost 5.16 (complete)
  • US 2 South Fork Skykomish River bridge at milepost 35.21 (complete)
  • SR 203 drainage overflow bridge at milepost 22.05 (complete)
  • SR 203 Skykomish River bridge at milepost 23.2 (complete)

Skagit County

  • SR 9 Skagit River bridge at milepost 54.38 (complete)
  • SR 20 Baker River bridge at milepost 89.35 (complete)

Whatcom County

  • SR 542 Cornell Creek bridge at milepost 32.51 (complete)
  • SR 542 Glacier Creek bridge at milepost 33.49 (complete)