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

The Southeast Eighth Street on-ramp to northbound I-405 and northbound I-405 off-ramp to Northeast Fourth/Eighth Street (Exit 13 A/B) will be closed from 11 p.m. Friday, Jan. 16 to 4:30 a.m. Monday, Jan. 19.

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 – 2027
Project status
Construction
Funding
$705 million (contractor’s bid amount)

What to expect

Northbound I-405 ramp closures and overnight lane reductions in Bellevue for retaining wall construction, Jan. 16-19 

Travelers should plan for northbound Interstate 405 ramp closures and overnight lane reductions in Bellevue from Jan. 16-19. Crews will be building a new retaining wall.

Closure details 

The following on-/off-ramps will be closed from 11 p.m. Friday, Jan. 16 to 4:30 a.m. Monday, Jan. 19:

  • Southeast Eighth Street on-ramp to northbound I-405 
  • Northbound I-405 off-ramp to Northeast Fourth/Eighth Street (Exit 13 A/B)

Signed detour routes will be in place for the ramp closures. Up to two lanes of northbound I-405 in Bellevue will be closed overnight from just north of Interstate 90 to Northeast Fourth/Eighth Street.

People traveling through the Eastside are advised to “know before you go," travel during off-peak hours or, if possible, delay discretionary travel to help minimize backups. 

Work is dependent on good weather and may be rescheduled. Schedule updates will be available on the project webpage, WSDOT’s Travel Center map, the WSDOT mobile app and by signing up for King County email updates. 

Houser Way North in Renton closed for watermain and storm drainage improvements, Oct. 13 – Dec. 31 

Houser Way North between Lake Washington Boulevard North and the Lowes business delivery access will be closed from 9 a.m. Monday, Oct.13 to Wednesday, Dec. 31. Pedestrian and bike access through the Houser Way bypass trail will remain open. A signed detour route will be available. Crews will be installing a City of Renton watermain and constructing storm drainage improvements.

Northbound SR-181 left turn lane to Southcenter Boulevard closed for 120 days beginning Aug. 18 for bridge improvements

The northbound State Route 181 left turn lane to Southcenter Boulevard in Tukwila will be closed starting at 11:15 p.m. Monday, August 18. A signed detour route will be in place, where northbound SR 181 travelers will continue to Fort Dent Way, use the on-ramp to southbound I-405, and take the Seattle/Southcenter Boulevard exit.

Upcoming work

Week of Jan. 11-17

Impactful work adjacent to I-405: 

  • Installing sign structure on southbound I-405 between SR 181 and Talbot Road South (2 nights: 1/14-1/15). 
  • Installing sign structure on northbound SR 167 between South 43rd Street and I-405 (4 nights: 1/12-1/15).  
  • Performing Bridge 11 investigation (4 nights: 1/12-1/15). 
  • Realigning barrier on the northbound I-405 off-ramp to SR 167 (4 nights: 1/12-1/15). 

City of Bellevue: 

  • Excavating embankment, installing footing, and grading at Noise Wall 5 (5 nights: 1/12-1/16). 
  • Installing precast barrier and rusticated barrier north of Bridge 30 (2 nights: 1/15-1/16). 
  • Installing conduits, junction boxes, and fiber on the Southeast Eighth Street on-ramp to northbound I-405 (5 nights: 1/12-1/16). 
  • Repairing fiber conduits between Southeast Eighth Street and Main Street (4 nights: 1/12-1/15). 
  • Clearing and grubbing on the eastbound I-90 off-ramp to Factoria Boulevard (4 nights: 1/12-1/15). 
  • Installing barrier near Southeast Eighth Street and working near wall 10.36IR (4 nights: 1/12-1/15). 
  • Preparing for weekend construction on northbound I-405 between Southeast Eighth Street and Northeast Fourth / Eighth Street (1 night: 1/12).
  • Up to two lanes of northbound I-405 lane between Southeast Eighth Street and Northeast Fourth/Eighth will be closed day and night (3 nights: 1/16-1/18). 
  • Installing sign structures near Bridge 41E (1 night: 1/15). 
  • Installing sign structures near the southbound I-405 off-ramp to Northeast Sixth Street (1 night: 1/15). 
  • Investigating fiber, sign structures, and installing barrier on southbound I-405 between Southeast Eighth Street and I-90 (3 nights: 1/12-1/14). 
  • Installing barrier along southbound I-405 near I-90 (3 nights: 1/12-1/14). 
  • Installing panels near Noise Wall 5 (4 nights: 1/12-1/15). 
  • Delivering rebar on Southeast Eighth Street between northbound and southbound I-405 (3 nights: 1/13-1/15). 
  • Performing civil work on westbound Coal Creek Parkway Southeast (5 nights :1/12-1/16). 

City of Newcastle:

  • Working near wall 7.90 (4 nights: 1/12-1/15). 
  • Installing panels near Noise Wall 5 (4 nights: 1/12-1/15). 

City of Renton:

  • Installing light and ramp meter foundations, and conduit and junction boxes on the southbound I-405 on-ramp between Talbot Road South and SR 169 (4 nights: 1/12-1/15). 
  • Directional boring on I-405 between Talbot Road South and SR 169 (4 nights: 1/12-1/15). 
  • Installing illumination conduits and junction boxes near the southbound I-405 off-ramp to North Southport Drive (4 nights: 1/12-1/15). 
  • Installing cast-in-place barrier on Northbound I-405 near Exit 6 (4 nights: 1/12-1/15).
  • Paving near wall 6.50R (3 nights: 1/12-1/14). 
  • Installing barrier, forming, pouring, and striping near wall 6.63L (1 night: 1/12). 
  • Realigning barrier near wall 3.30R (4 nights: 1/12-1/15). 
  • Installing a permanent attenuator and grading on northbound I-405 near SR 900 / SR 169 (2 nights: 1/12-1/13). 
  • Installing sign structure and performing roadway work near wall 6.50 (4 nights: 1/12-1/15). 
  • Performing roadway work near the Northeast 30th Street on-ramp to northbound I-405 (2 nights: 1/12-1/13). 
  • Installing watermain on the Northeast 44th Street on-ramp to northbound I-405 (2 nights: 1/14-1/15). 
  • Moving equipment near the Northeast 44th Street on-ramp to northbound I-405 (1 night: 1/12). 
  • Shifting traffic along southbound I-405 between Coal Creek Parkway Southeast and May Creek (2 nights: 1/14-1/15). 
  • Shifting traffic and installing illumination conduit near Exit 5 (2 nights: 1/14-1/15). 
  • Shifting traffic near southbound I-405 between Sunset Boulevard North and Northeast 30th Street (2 nights: 1/14-1/15). 
  • Removing barrier and paving near wall 3.30L (2 nights: 1/12-1/13). 
  • Installing sign structure on southbound I-405 between SR 181 and Talbot Road South (2 nights: 1/14-1/15). 

Week of Jan. 18-24

Impactful work adjacent to I-405: 

  • Bridge 11 investigation and installing temporary illumination (3 nights: 1/20-1/22). 
  • Fiber work on Southeast Eighth Street between southbound and northbound I-405 (1 night: 1/20).  
  • Civil work on Coal Creek Parkway Southeast (4 nights: 1/20-1/23).  
  • Pulling wire and installing cabinets on Tukwila Boulevard (3 nights: 1/20-1/22).  

City of Bellevue: 

  • Installing directional bores on northbound I-405 between Lake Washington Boulevard Southeast and Coal Creek Parkway Southeast (2 nights: 1/21-1/22).  
  • Installing precast and rusticated barrier on northbound I-405 between bridge 40ETL and bridge 41E (5 nights: 1/19-1/23).
  • Paving northbound I-405 between I-90 and Southeast Eighth Street (3 nights: 1/19-1/21). 
  • Installing toll cabinet pad and proofing and repairing fiber conduits on northbound I-405 between Southeast Eighth Street and Main Street (3 nights: 1/20-1/22).  
  • Grubbing at the northbound I-405 off-ramp to eastbound I-90 (2 nights: 1/21-1/22). 
  • Paving on the westbound I-90 on-ramp to northbound I-405 (3 nights: 1/21-1/23).  
  • Installing sign structures, embankment work, wall work at wall 10.36IR, installing drainage, disrupting fiber, and paving on northbound I-405 between Coal Creek Parkway Southeast and Northeast Sixth Street (1 night: 1/23).  
  • Wall work for wall 13.30R and installing drainage, sign structures, toll fiber, and toll pads on northbound I-405 between Southeast Eighth Street to Northeast Fourth / Eighth Street (4 nights, 1/20-1/22, 1/24).  
  • Installing toll fiber at the Northeast Fourth Street on-ramp to northbound I-405 (2 nights: 1/21-1/22).  
  • Survey work at the northbound I-405 off-ramp to SR 520 (1 night: 1/22). 
  • Installing toll fiber at the southbound I-405 on- and off-ramps to Southeast Eighth Street (1 night: 1/20). 
  • Goring and installing barrier and sign structures on southbound I-405 between Southeast Eighth Street and I-90 (4 nights: 1/20-1/23).  
  • Installing bores at the southbound I-405 off-ramp to 112th Avenue Southeast (2 nights: 1/21-1/22). 
  • Installing bores at the 112th Avenue Southeast on-ramp to southbound I-405 (1 night: 1/20).  
  • Installing panels for noise wall 5, sign structures, and bores on southbound I-405 between Coal Creek Parkway Southeast and the May Creek Bridge (4 nights: 1/20-1/23). 
  • Mobilizing equipment and installing drainage on southbound I-405 between milepost 10 and milepost 8 (1 night: 1/24).  
  • Up to two lanes of northbound I-405 lane between Southeast Eighth Street and Northeast Fourth / Eighth Street will be closed day and night (3 nights: 1/16-1/18).  

City of Newcastle:

  • Excavating, embankment work, and grading for noise wall 5 footing (4 nights: 1/20-1/23). 
  • Installing directional bores on southbound I-405 between Lake Washington Boulevard Southeast and Northeast 44th Street (1 night: 1/20).  

City of Renton:

  • Installing toll structure, conduit, and junction boxes between SR 167 and I-5 (3 nights: 1/20-1/22). 
  • Installing light and ramp meter foundations, conduits, and junction boxes on southbound I-405 between Talbot Road South and SR 169 (3 nights: 1/20-1/22). 
  • Installing illumination conduits and junction boxes at the southbound I-405 off-ramp to North Southport Drive (3 nights: 1/20-1/22). 
  • Installing cast-in-place barrier at the northbound I-405 off-ramp to Northeast 30th Street (4 nights: 1/19-1/22). 
  • Grading and installing drainage near wall 3.30R (4 nights: 1/20-1/23).  
  • Installing sign structure and wall work at walls 7.90 and 6.50 (3 nights: 1/20-1/22). 
  • Installing sign structure and signs at the Northeast 30th Street on-ramp to southbound I-405 (3 nights: 1/20-1/22).  
  • Pouring barrier at the southbound I-405 off-ramp to Sunset Boulevard North (2 nights: 1/20, 1/1/22).  
  • Installing light pole foundation and sign structure at the SR 169 / SR 900 on-ramp to southbound I-405 (3 nights: 1/20-1/22).  
  • Wall work at wall 3.30L, removing barrier, and installing bores on southbound I-405 between SR 900 and milepost 0.5 (4 nights: 1/20-1/23). 
  • Installing bores at the SR 181 on-ramp to southbound I-405 (3 nights: 1/20-1/22).  

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

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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 improvements to offer more reliable travel choices and keep drivers, transit riders and freight moving.

Project highlights include:

  • A new southbound auxiliary lane in the I-90 to 112th Avenue Southeast vicinity.
  • Improvements at interchanges, including Northeast Park Drive and Northeast 44th Street in Renton, and 112th Avenue Southeast and Coal Creek Parkway in Bellevue.
  • Construction of portions of the King County Eastrail, including a 2.5-mile paved section and a new crossing over I-405 in downtown Bellevue at the site of the former Wilburton rail bridge (in partnership with King County).
  • New direct access ramp and inline transit station at NE 44th Street in Renton to help support BRT operations (in partnership with Sound Transit).