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I-405 - Construction Updates

Last update: 10:23 a.m. Friday, Feb. 27, 2015

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: Coal Creek Parkway Southbound Ramp Meter Installation

Last update: 1:15 p.m., 2/24
Milepost: 10.18
Mark Sawyer, WSDOT Project Engineer, 425-225-8799

  • Monday, March 2 to Thursday, March 5 - One lane and/or the shoulder of the Coal Creek Parkway on-ramp to southbound I-405 will be closed from 8 a.m. to 2 p.m. daily for electrical work.
  • Monday, March 2 to Thursday, March 5 - The right turn pocket from eastbound Coal Creek Parkway to the southbound I-405 on-ramp will be closed from 8 a.m. to 2 p.m. daily for electrical work.

I-405: NE 6th Street to I-5 Widening and Express Toll Lanes - #8204

Last update: 10:23 a.m., 2/27
Mileposts: 13.5 - 30
Steve Peer, Public Information, 425-456-8624
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Ramp Closures:

Bellevue area

  • Monday, March 2 to the morning of Friday, March 6 – The northbound I-405 off-ramp to Southeast Eighth Street will close from 11 p.m. to 5 a.m. nightly for electrical work.
  • Monday, March 2 to the morning of Friday, March 6 – The eastbound and westbound SR 520 ramps to northbound I-405 will close from 10 p.m. to 4 a.m. nightly for electrical work.

Bothell area

  • Monday, March 2 to the morning of Friday, March 6 – The eastbound and westbound SR 522 ramps to southbound I-405 will close from 10 p.m. to 5 a.m. nightly for roadway excavation work.
  • Monday, March 2 to the morning of Friday, March 6 – The northbound I-405 ramp to SR 522 to will close from 9 p.m. to 6 a.m. nightly for drainage and backfill work.

Kirkland area  

  • Monday, March 2 to the morning of Friday, March 6 – The northbound I-405 off-ramp to Northeast 70th Street will close from 9 p.m. to 6 a.m. nightly for roadway excavation work. This ramp will not close if the NE 85th to northbound I-405 ramp closes.
  • Monday, March 2 to the morning of Friday, March 6 – The Northeast 70th Street on-ramp to northbound I-405 will close from 11 p.m. to 5 a.m. nightly for roadway excavation and drainage work.
  • Monday, March 2 to the morning of Friday, March 6 – The northbound I-405 off-ramp to Northeast 85th Street will close from 10 p.m. to 6 a.m. nightly for electrical work.
  • Monday, March 2 to the morning of Thursday, March 5 – The northbound I-405 off-ramp to Northeast 128th Street will close from midnight to 4:50 a.m. nightly for tolling work.
  • Monday, March 2 to the morning of Wednesday, March 4 – The southbound I-405 off-ramp to Northeast 128th Street will close from 8 p.m. to 4:50 a.m. nightly for tolling work.
  • Monday, March 2 to the morning of Friday, March 6 – The Northeast 160th Street on-ramp to northbound I-405 will close from 10 p.m. to 6 a.m. nightly for noise wall construction.
  • Monday, March 2 to the morning of Friday, March 6 – The southbound I-405 off-ramp to Northeast 160th Street will close from 11 p.m. to 5 a.m. nightly for roadway excavation work.
  • Tuesday, March 3 to the morning of Wednesday, March 4 – The Northeast 85th Street on-ramp to northbound I-405 will close from 11 p.m. to 5 a.m. for noise wall construction prep and traffic shift work. This work is weather dependent.
  • Tuesday, March 3 to the morning of Wednesday, March 4 – The Northeast 128th Street on-ramp to northbound I-405 will close from midnight to 6 a.m. tolling work.
  • Tuesday, March 3 to the morning of Wednesday, March 4 – The Northeast 128th Street on-ramp to southbound I-405 will close from 8 p.m. to 4:50 a.m. tolling work.
  • Thursday, March 5 to the morning of Friday, March 6 – The Northeast 85th Street on-ramp to northbound I-405 will close from 11 p.m. to 5 a.m. for noise wall construction prep and traffic shift work. This work is weather dependent.

Lane Closures:

Bellevue area

  • No closures at this time

Bothell/Lynnwood area

  • Monday, March 2 to the morning of Friday, March 6 – One lane of northbound I-405 between Northeast 160th Street and SR 522 will close from 9 p.m. to 6 a.m. nightly for noise wall construction.
  • Monday, March 2 to the morning of Friday, March 6 – One lane of southbound I-405 between SR 522 and Northeast 160th Street will close from 7 p.m. to 5 a.m. nightly for roadway excavation work.

Kirkland area

  • Monday, March 2 to the morning of Friday, March 6 – Up to two lanes of northbound I-405 between Northeast 70th Street and Northeast 85th Street will close from 8 p.m. to 7 a.m. nightly for roadway excavation work.
  • Monday, March 2 to the morning of Tuesday, March 3 – Up to two lanes of southbound I-405 between Northeast 160th Street and Northeast 124th Street will close from 7 p.m. to 5 a.m. for tolling work.
  • Monday, March 2 to the morning of Tuesday, March 3 – Up to two lanes of southbound I-405 between Northeast 85th Street and Northeast 70th Street will close from 7 p.m. to 5 a.m. for tolling work.
  • Tuesday, March 3 to the morning of Friday, March 6 – Up to two lanes of southbound I-405 between Northeast 160th Street and Northeast 70th Street will close from 7 p.m. to 4:30 a.m. nightly for tolling work.
  • Tuesday, March 3 to the morning of Thursday, March 5 – Up to three lanes of southbound I-405 between Northeast 85th Street and Northeast 70th Street will close starting at 7 p.m. for tolling work. All lanes will be open by 5 a.m.
  • Thursday, March 5 to the morning of Friday, March 6 – Up to two lanes of southbound I-405 between Northeast 85th Street and Northeast 70th Street will close from 7 p.m. to 5 a.m. for tolling work.
  • Thursday, March 5 to the morning of Friday, March 6 – One lane of southbound I-405 between Northeast 70th Street and SR 520 will close from 7 p.m. to 5 a.m. for tolling work.

I-405: SE 8th to Northup Way Paving - #8601

Last update: 1:45 p.m., 2/23
Mileposts: 13.68 - 14.85
Mark Sawyer, WSDOT Project Engineer, 425-225-8799
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  • This project is suspended until Spring 2015.