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I-405 - Construction Updates

Last update: 4:40 p.m. Friday, June 23

This information changes frequently. Please check back often. Travelers can also call 5-1-1 for real-time traffic and weather updates.

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

I-405

SB S 320th St to Duwamish River Br Concrete Pavement Rehab - #8816

Highway: I-405    Region: Northwest    County: King    Location: Milepost(s) 0.00
Contact: Mike Askarian, Project Engineer, 206-768-5861
Description: WSDOT contractor crews are rehabilitating southbound I-5 between the Duwamish River Bridge in Tukwila and South 320th Street in Federal Way.
Project website
Work schedule:

  • No lane or ramp closures are scheduled.
I-405/SR 167 Interchange Direct Connector - #8811

Highway: I-405    Region: Northwest    County: King    Location: Milepost(s) 2.32 – 3.96
Contact: Craig Smiley, Communications, 425-456-8624
Description: WSDOT contractor crews are building a new flyover ramp connecting the HOT lanes on SR 167 to the carpool lanes on I-405 in Renton. This ramp will improve traffic flow and safety at this critical interchange.
Project website
Work schedule:

LANE CLOSURES 

  • No lane closures are scheduled.

RAMP CLOSURES

  • Monday, June 26, to the morning of Friday, June 30– The southbound I-405 off-ramp to southbound SR 167/Rainier Avenue South will be closed nightly from 10 p.m. to 4:30 a.m. A signed detour will be in place.

CITY STREET CLOSURES

  • Monday, June 26, to Friday, June 30 – One lane of northbound Talbot Road South between the northbound I-405 on-ramp to the southbound I-405 off-ramp will be closed from 9:00 a.m. to 3:00 p.m.
Bellevue to Kirkland Tolling Maintenance Work

Highway: I-405    Region: Northwest    County: King    Location: Milepost(s) 13.70 - 29.30
Contact: Nicole Daniels, Communications, 206-440-4479
Description: WSDOT crews are performing annual preventative tolling maintenance work on northbound I-405 in Bothell.
Work schedule:

  • Sunday, June 25 -  The left ETL of northbound I-405 between Northeast 124th Street and Northeast 160th Street will be closed from 5 to 9 a.m.
  • Monday, June 26, to the morning of Wednesday, June 28 - The ETL of northbound I-405 between Northeast 195th Street/Beardslee Boulevard and SR 524 will be closed from 9 p.m. to 5 a.m. nightly.
  • Wednesday, June 28, to the morning of Thursday, June 29 - The ETL of southbound I-405 between Northup Way and Northeast 6th Street will be closed from 11:59 p.m. to 4:30 a.m.
  • Wednesday, June 28, to the morning of Thursday, June 29 - The southbound I-405 HOV off-ramp to Northeast 6th Street will be closed from 11:59 p.m. to 4:30 a.m.
  • Wednesday, June 28, to the morning of Thursday, June 29 - The Northeast 6th Street HOV on-ramp to northbound I-405 will be closed from 11:59 p.m. to 4:30 a.m.
Kirkland Signal Work

Highway: I-405    Region: Northwest    County: King    Location: Milepost(s) 16.50
Contact: Nicole Daniels, Communications, 206-440-4479
Description: WSDOT signal maintenance crews are replacing a traffic camera pole on northbound I-405 in Kirkland.
Work schedule:

  • Thursday, June 29, to the morning of Friday, June 30 - The right lane of northbound I-405 just south of Northeast 70th Place will be closed from 10 p.m. to 5 a.m.
NE 6th St to I-5 Widening and Express Toll Lanes Project - #8204

Highway: I-405    Region: Northwest    County: King    Location: Milepost(s) 19.00 - 21.00
Contact: Craig Smiley, Communications, 425-456-8624
Description: WSDOT contractor crews are building a continuous new northbound and southbound ETL between Northeast 6th Street in Bellevue and SR 522 in Bothell.
Project website
Work schedule:

  • Saturday, June 24, to the morning of Sunday, June 25 - Two right lanes of southbound I-405 between Northeast 100th Street and Northeast 145th Street will be closed beginning with the right lane at 8 p.m. All lanes will reopen by 8 a.m.
  • Saturday, June 24, to the morning of Sunday, June 25 - The Northeast 124th Street on-ramp to southbound I-405 will be closed from 9 p.m. to 8 a.m.
Northbound Peak Use Shoulder Lane Project, SR 527 to I-5 - #8886

Highway: I-405    Region: Northwest    County: King    Location: Milepost(s) 23.67 - 30.30
Contact: Craig Smiley, Communications, 425-450-2729
Description: WSDOT contractor crews are building a peak-use shoulder lane between SR 527 and I-5.
Project website
Work schedule:

LANE CLOSURES
 

  • No lane closures are scheduled.

RAMP CLOSURES

  • No ramp closures are scheduled.