WSDOT Projects

text size: T T T

I-405 - Construction Updates

Overview

Construction schedules and activities are subject to weather conditions. Please review the construction updates on this page for the most current information on I-405 construction projects. Travelers can also call 511 for real-time traffic and weather updates

Updates are posted frequently.

Last updated: Oct. 10, 2008, 4:00 p.m.

If you have questions or comments that are not addressed by these resources, please contact the I-405 Project Office at 425-456-8585.

For construction update information about other projects in King County visit the King County Construction project updates  page.

I-405: I-5 to SR 169 Stage 1 Widening (I-5 to SR 167) - #7295

8:44 a.m., 10/10
Mileposts: 0 - 4.5
Lisa Hodgson, Project Engineer, 425.282.6826
WSDOT will add one northbound and one southbound lane to I-405 between I-5 and SR 167. We will also add one southbound lane on SR 167 between I-405 and SW 41st Street, and extend the southbound SR 167 HOV lane from I-405 to the existing
start of the HOV lane. 

I-405

  • Wednesday, Oct. 15 – Thursday, Oct. 16 – Crews will close two right lanes on northbound I-405 nightly between I-5 and SR 167 from midnight to 5 a.m. for work on a retaining wall.

I-405 Ramps

  • Wednesday, Oct. 15 – Thursday, Oct. 16 – Crews will close the ramp from northbound I-405 to southbound SR 167 nightly from 11 p.m. to 6 a.m. to construct a retaining wall.

SR 167

  • Monday, Oct. 13 – Thursday, Oct. 16 – Crews will close two right lanes on southbound SR 167 between I-405 and South 180th Street nightly for roadway widening work. The first lane will close at 8 p.m. The second lane will close at midnight. All lanes will be open by 5 a.m.

Renton and Tukwila City Streets

  • Monday, Oct. 13 – Friday, Oct. 17 – Crews will close one lane in each direction on Oakesdale Avenue SW from 7:30 a.m. to 5 p.m. daily.
  • Monday, Oct. 13 – Friday, Oct. 17 – Crews will close one lane of eastbound SW Grady Way near Oakesdale Avenue SW from 7:30 a.m. to 5 p.m. daily.

I-405: I-5 to SR 169 Stage 2 Widening (SR 167 to SR 169) 

9:10 a.m., 10/10
Mileposts: 2.35 – 4.5
Chad Brown, Project Engineer, 425.456.8569
WSDOT will add a northbound and southbound lane to I-405 between SR 167 and SR 169. We will also construct a new half-diamond interchange at SR 515 and reconstruct the Benson Road Bridge over I-405.

  • We do not expect construction to affect traffic this week.

I-405: South Bellevue Widening (112th Ave SE to SE 8th Street) - #7283

4:00 p.m., 10/10
Mileposts: 8.94 - 12.34 
Stacy Trussler, Deputy Project Director South, 425.401.4126
We will widen I-405 within the city of Bellevue between 112th Avenue SE and SE 8th Street. The principle features of the 112th Avenue SE to SE 8th St project are one southbound lane from SE 8th Street to I-90 and one northbound lane from 112th Avenue to SE 8th Street. 

I-405

  • Saturday, Oct. 11 - Crews will close one left lane and one right lane on southbound I-405 between Coal Creek Parkway and 112th Ave. SE from 10:30 p.m. to 8:30 a.m. to install a catch basin. 

I-405 Ramps

  • Monday, Oct. 13 - Drivers should expect delays while crews use a pilot car to guide concrete trucks safely into and out of the work zone on the ramp from southbound I-405 to eastbound I-90 from 8 a.m. to 3 p.m.

I-405: NE 10th Street Bridge Crossing

10 a.m., 10/10
Mileposts: 13.5 - 14.28
Doug Haight, Project Engineer, 425.649.4429
WSDOT is partnering with the city of Bellevue to build a new freeway bridge at NE 10th Street in Bellevue. The NE 10th Street Bridge will be built in two stages. The city of Bellevue will construct the first stage. WSDOT will construct the bridge over I-405 in the second stage.

I-405

  • Friday, Oct. 10 - Crews will close two left lanes on southbound I-405 between SR 520 and SE 8th Street to pour concrete in the median. The first lane will will close at 8 p.m. The second lane will close at 10 p.m. All lanes will be open by 5 a.m.
  • Friday, Oct. 10 - Crews will close one left lane on northbound I-405 between SE 8th Street and SR 520 from 9 p.m. to 5 a.m. to pour concrete in the median.

I-405 Ramps

  • Friday, Oct. 10 - Crews will close the ramp from southbound I-405 to NE 6th Street from 11 p.m. to 5 a.m. to pour concrete in the median.
  • Friday, Oct. 10 - Crews will close the ramp from NE 6th street to northbound I-405 from 11 p.m. to 5 a.m. to pour concrete in the median.