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I-405 - Construction Updates

Last update: 3:20 p.m. Friday, March 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: 3:20 p.m., 3/27
Milepost: 10.18
Mark Sawyer, WSDOT Project Engineer, 425-225-8799

  • Monday, March 30 to Friday, April 3 - No closures are scheduled this week.

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

Last update: 11:25 a.m., 3/27
Mileposts: 13.5 - 30
Steve Peer, Public Information, 425-456-8624
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BLT map

Ramp Closures:

Bellevue area

  • Saturday, March 28 to the morning of Sunday, March 29 – The westbound SR 520 ramp to southbound I-405 will close from 11 p.m. to 7 a.m. for striping work.
  • Saturday, March 28 to the morning of Sunday, March 29 – The southbound I-405 ramp to SR 520 will close from midnight to 7 a.m. for paving, striping and noise wall construction work.
  • Sunday, March 29 to the morning of Monday, March 30 – The southbound I-405 ramp to SR 520 will close from 11 p.m. to 4 a.m. for paving, striping and noise wall construction work.

Bothell area

  • Monday, March 30 to the morning of Friday, April 3 – The eastbound and westbound SR 522 ramp to southbound I-405 will close from 10 p.m. to 5 a.m. for roadway excavation work.
  • Monday, March 30 to the morning of Friday, April 3 – The northbound I-405 ramp to SR 522 will close from 9 p.m. to 6 a.m. nightly for drainage and backfill work.

Kirkland area  

  • Saturday, March 28 to the morning of Sunday, March 29 – The Northeast 70th Street on-ramp to southbound I-405 will close from 8 p.m. to 8 a.m. for paving, striping and noise wall construction work.
  • Sunday, March 29 to the morning of Monday, March 30 – The Northeast 70th Street on-ramp to southbound I-405 will close from 8 p.m. to 6 a.m. for paving, striping and noise wall construction work.
  • Saturday, March 28 to the morning of Sunday, March 29 – The southbound I-405 off-ramp to Northeast 85th Street will close from 9 p.m. to 8 a.m. for striping work.
  • Sunday, March 29 to the morning of Monday, March 30 – The southbound I-405 off-ramp to Northeast 85th Street will close from 9 p.m. to 6 a.m. for striping work.
  • Monday, March 30 to the morning of Thursday, April 2 – 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 northbound I-405 off-ramp to Northeast 85th Street closes.
  • Monday, March 30 to the morning of Wednesday, April 1 – The southbound I-405 off-ramp to Northeast 85th Street will close from 9 p.m. to 6 a.m. nightly for paving and drainage work.
  • Monday, March 30 to the morning of Wednesday, April 1 – The Northeast 128th Street on-ramp to southbound I-405 will close from 8 p.m. to 4:50 a.m. for tolling work.
  • Monday, March 30 to the morning of Wednesday, April 1 – 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 30 to the morning of Tuesday, March 31 – The southbound I-405 off-ramp to Northeast 128th Street will close from 8 p.m. to 4:50 a.m. nightly for paving and drainage work.
  • Monday, March 30 to the morning of Friday, April 3 – The Northeast 160th Street on-ramp to northbound I-405 will close from 10 p.m. to 6 a.m. nightly for paving work.
  • Monday, March 30 to the morning of Friday, April 3 – 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 31 to the morning of Friday, April 3 – The Northeast 70th Street on-ramp to northbound I-405 will close from 9 p.m. to 6 a.m. nightly for roadway excavation and grading work.
  • Tuesday, March 31 to the morning of Thursday, April 2 – The northbound I-405 off-ramp to Northeast 85th Street will close from 10 p.m. to 6 a.m. nightly for roadway excavation and grading work.
  • Tuesday, March 31 to the morning of Wednesday, April 1 – The Northeast 85th Street on-ramp to southbound I-405 will close from 10 p.m. to 6 a.m. for drainage and grading work.
  • Wednesday, April 1 to the morning of Thursday, April 2 – The southbound I-405 off-ramp to Northeast 128th Street will close from 8 p.m. to 4:50 a.m. nightly for paving and drainage work.
  • Thursday, April 2 to the morning of Friday, April 3 – The Northeast 70th Street on-ramp to southbound I-405 will close from 8 p.m. to 6 a.m. nightly for sign structure work. Thursday, April 2 to the morning of Friday, April 3 – The southbound I-405 off-ramp to Northeast 85th Street will close from 9 p.m. to 6 a.m. nightly for paving and drainage work.
  • Thursday, April 2 to the morning of Friday, April 3 – The Northeast 85th Street on-ramp to southbound I-405 will close from 10 p.m. to 6 a.m. for drainage and grading work.
  • Thursday, April 2 to the morning of Friday, April 3 – The northbound I-405 off-ramp to Northeast 128th Street will close from midnight to 4:50 a.m. nightly for tolling work.
  • Thursday, April 2 to the morning of Friday, April 3 – The Northeast 128th Street on-ramp to southbound I-405 will close from 8 p.m. to 4:50 a.m. for tolling work

Lane Closures:

Bellevue area

  • Saturday, March 28 to the morning of Sunday, March 29 – Three lanes of southbound I-405 between Northeast 70th Street and SR 520 will close starting at 7 p.m. for paving, striping and noise wall construction work. The first lane will open at 7 a.m. and all lanes will be open by 9 a.m.
  • Sunday, March 29 to the morning of Monday, March 30 – Three lanes of southbound I-405 between Northeast 70th Street and SR 520 will close starting at 7 p.m. for paving, striping and noise wall construction work. The first lane will open at 4:30 a.m. and all lanes will be open by 5 a.m.

Bothell/Lynnwood area

  • Monday, March 30 to the morning of Friday, April 3 – 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 paving work.
  • Monday, March 30 to the morning of Friday, April 3 – One lane of southbound I-405 between SR 522 and Northeast 160th Street will close from 7 p.m. to 5 a.m. for roadway excavation work.
  • Monday, March 30 to the morning of Tuesday, March 31 – Up to two lanes of southbound I-405 between I-5 in Lynnwood and SR 527 will close starting at 7 p.m. to 5 a.m. for sign structure work.

Kirkland area

  • Monday, March 30 to the morning of Wednesday, April 1 – 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.
  • Monday, March 30 to the morning of Wednesday, April 1 – Up to two lanes of northbound I-405 between Northeast 85th Street and Northeast 124th Street will close from 7:30 p.m. to 6 a.m. for tolling work.
  • Tuesday, March 31 to the morning of Thursday, April 2 – One lane 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 and drainage work.
  • Wednesday, April 1 to the morning of Thursday, April 2 – Up to two lanes of northbound I-405 between Northeast 70th Street and Northeast 85th Street will close from 8 p.m. to 5 a.m. for tolling work.
  • Wednesday, April 1 to the morning of Thursday, April 2 – Up to two lanes of southbound I-405 between Northeast 70th Street and SR 520 will close from 7 p.m. to 5 a.m. for tolling work.
  • Thursday, April 2 to the morning of Friday, April 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.
  • Thursday, April 2 to the morning of Friday, April 3 – Up to two lanes of northbound I-405 between Northeast 85th Street and Northeast 124th Street will close from 7:30 p.m. to 6 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
Get project information

  • This project is suspended until Spring 2015.