Project updates
Learn about where and when construction is happening throughout the ST district.
East Link Extension

In this alert: Nighttime girder installation, Weekday construction traffic impacts, Night work near I-90, and Reminder of ongoing closures

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Precast concrete girder installation

Crews working to build Sound Transit's East Link project in south Bellevue will begin installing pre-cast concrete girders early next week. Girder installation is scheduled to begin Monday, July 16, and installation will continue Monday-Friday night for approximately two weeks. Precast concrete girders measuring 80-120 feet long and each weighing up to 205,000 pounds will be trucked in and lifted into place using large mobile cranes. Once installed, the girders will serve as the foundation for much of East Link's aerial guideway and station in South Bellevue. Anticipated work hours will be 10 p.m. to 5 a.m. nightly.

Girder installation work area.

Girder installation work area.

Noise/light: Temporary light plants will be used to illuminate the work area. There will be noise from cranes, lifts, light plants and associated equipment while crews set concrete girders. Vehicles will utilize broadband backup alarms. Crane backup alarms are tonal, but they will be used infrequently.

Sound Transit's contractor is permitted to work expanded hours in the I-90 corridor and adjacent to Bellevue Way Southeast, including 24-hour work in this area. The allowable noise threshold is based on average construction noise produced over each one-hour period. There may be moments during an hour when construction noise exceeds the hourly average, but crews will take measures to stay below the average hourly threshold. Please contact East Link outreach with any feedback on nighttime noise. For after-hours issues that need immediate attention, Sound Transit maintains a 24-hour construction hotline.

For after-hours issues that need immediate attention, Sound Transit maintains a 24-hour construction hotline.

Anticipated girder installation schedule:

July 16-17: Monday-Tuesday (Wednesday morning): I-90

July 18-20: Wednesday-Friday (Saturday morning): South Bellevue Station site

July 23-27: Monday-Friday (Saturday morning): South Bellevue Station site

July 30: Monday (Tuesday morning): South Bellevue Station site

Construction crews will use cranes to place girders between columns.

Construction crews will use cranes to place girders between columns.

Weekday construction traffic impacts: Monday, July 16 – Friday, July 20

I-90
Monday-Tuesday (Wednesday morning) night closures, 9 p.m. to 5 a.m.: In order to safely install girders for the East Link elevated guideway in south Bellevue, Sound Transit's contractor plans to close the following HOV ramps.
  • Eastbound I-90 to northbound Bellevue Way Southeast HOV ramp (Tuesday night only)
  • Southbound I-405 to westbound I-90 HOV ramp
  • Westbound I-90 HOV lane between Bellevue Way Southeast and the East Channel Bridge
Bellevue Way Southeast

In order to work in the eastside curb lane while maintaining two lanes of traffic in the peak direction (northbound 6-10 a.m. and southbound 2-6 p.m.) crews will use the 'southbound center lane' as a reversible traffic lane. At times, northbound vehicles will travel in what is normally a southbound lane.

Monday-Friday 6 a.m. to 6 p.m.: Work is set to begin on the light rail trench and guideway adjacent to Bellevue Way Southeast, between the South Bellevue Station site and the Wye at 112th Avenue Southeast. Throughout the project, two lanes will be maintained in the peak direction: northbound in the morning and southbound in the afternoon. Sound Transit's contractor will use cones and lane delineators to guide traffic along Bellevue Way Southeast. Please follow the direction of flaggers and signage to safely access your destination. More info on what to expect can be found at the East Link long-term and ongoing closures page.

112th Avenue Southeast

Monday-Friday 9 a.m. to 4 p.m.: Daily closures of one northbound lane of 112th Avenue Southeast, between Bellevue Way Southeast and Main Street.

Monday-Friday 9 a.m. to 4 p.m.: Daily closures of one southbound lane of 112th Avenue Southeast, between Main Street and Southeast 8th Street.

Monday-Friday 7 a.m. to 3 p.m.: As needed, in order to complete utility work and facilitate wall construction, Sound Transit's contractor may close one southbound lane of 112th Avenue Southeast, between Southeast 8th Street and Bellevue Way Southeast.

Reminder of ongoing closures

For information on previously announced long-term and ongoing closures click here.

  • Bellevue Way Southeast reversible lane configuration
  • Sidewalk closures and detours on Bellevue Way Southeast and 112th Avenue Southeast
  • Bellevue Way Southeast to I-90 west HOV ramp 120 day closure
  • Closure of Southeast 15th at 112th Avenue Southeast
  • Winters House and Blueberry Farm Closure and new temporary lot