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I-405/Renton to Bellevue Widening and Express Toll Lanes Project

Project overview

Travelers on Interstate 405 between Renton and Bellevue experience one of the state’s worst commutes. The I-405/Renton to Bellevue Widening and Express Toll Lanes project includes multimodal transportation and safety improvements to offer more reliable travel choices and keep drivers, transit riders and freight moving.

The Renton to Bellevue project will add new capacity to create a two-lane ETL system between SR 167 in Renton and Northeast Sixth Street in Bellevue. In general, the project will add one new lane in each direction and combine the existing HOV lane with the new lane to create a dual ETL system.

The new ETLs will connect to the existing express toll lane system between Bellevue and Lynnwood, as well as the SR 167 HOT lanes via the I-405/SR 167 Interchange Direct Connector, to create a 40-mile ETL system. This project is designed to improve speeds and trip reliability for all travelers and support the new I-405 Bus Rapid Transit (BRT) line between Lynnwood and Tukwila included in the voter-approved Sound Transit 3 package.

Timeline
2015 - 2025
Project status
Construction
Funding
$705 million (contractor’s bid amount)
Project hotline
425-456-8585

What to expect

Upcoming night work

Week of April 20 – April 26 

City of Bellevue: 

  • Relocating temporary barrier for new northbound mainline (2 nights: 4/21 - 4/22)
  • Stripping for new northbound mainline (1 night: 4/23)
  • Constructing new northbound switch near 112th Avenue Southeast (1 night: 4/23)
  • Directional boring near Coal Creek (2 nights: 4/23 - 4/24)
  • Permanent fiber relocation for wall 10.36IR near Coal Creek (4 nights: 4/21 - 4/24)
  • Installing drainage along northbound shoulder of MN3 (4 nights: 4/21-4/24) 

City of Renton  

  • Installing new video cameras (3 nights: 4/21-4/23)
  • Installing CCTV pole (4 nights: 4/21 - 4/24)
  • Installing surface mount conduit on Lind Avenue Bridge (4 nights: 4/21 - 4/24)
  • Demolishing Pier 1 abutment for bridge 17.7 (5 nights: 4/21 - 4/25)
  • Installing drainage near North Southport Drive (4 nights: 4/21 - 4/24)
  • Directional bore installation near Northeast 44th Street (2 nights: 4/21-4/22) 

City of Newcastle: 

  • No night work scheduled in this period 

Week of April 27 – May 3 

City of Bellevue: 

  • Temporary fiber relocation for wall 10.36IR near Coal Creek (4 nights: 4/28 - 5/1)
  • Installing drainage along northbound shoulder of MN3 (4 nights: 4/28 - 5/1) 

City of Renton  

  • Installing drainage near North Southport Drive (4 nights: 4/28 - 5/1) 

City of Newcastle: 

  • No night work scheduled in this period 
     

Project improvements will occur in the Renton to Bellevue area along I-405.

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