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I-5: Federal Way to Mountlake Terrace

Last update: 9:23 a.m. Thursday, Sept. 18, 2014

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

I-5

I-5: Express lanes schedule changes
Mileposts: 165.29 to 172.43
Get the regular express lanes schedule.

Last update: 7:26 a.m. 8/4
I-5: SR 18 to South 288th Street seismic retrofit - #8565
Mileposts: 142.00 - 145.82
Aleta Borschowa, Project Engineer, 206-768-5862
Get project information

There may be closures on SR 18 for this project.

  • No work that will affect traffic on I-5 is scheduled.

Last update: 4:32 p.m. 8/29
I-5: S. 272nd Vicinity to South Rose Street seismic retrofit - #8559
Mileposts: 146.43 - 159.67
Aleta Borschowa, Project Engineer, 206-768-5862
Get project information

  • No work that will affect traffic on I-5 is scheduled. 

Last update: 1:04 p.m., 8/26
I-5: Maintenance - Electronic sign work
Mileposts: 155.91 - 164.00
Jon Cornelius, WSDOT signals, 206-442-2113

  • DRIVER ALERT: Saturday, Sept. 20 to the morning of Sunday, Sept. 21 - Northbound I-5 will be reduced to one lane between SR 599 and I-90 from 11:59 p.m. to 5 a.m. for electronic sign work.

Last update: 11:15 a.m., 9/11
I-5: Maintenance - pavement repair
Mileposts: 155.00 - 161.02
Lee Fanning, WSDOT maintenance, 425-587-3831

  • Tuesday, Sept. 16 to the morning of Wednesday, Sept. 17 - The three right lanes of southbound I-5 between Interurban Avenue South and SR 900 will close from 11 p.m. to 5 a.m. for pavement repair. The ramp from SR 900 to southbound I-5 will also close.
  • Wednesday, Sept. 17 to the morning of Thursday, Sept. 18 - The two right lanes of southbound I-5 at mid-Boeing Field will close from 11 p.m. to 5 a.m. for pavement repair.

Last update: 11:15 a.m., 9/11
I-5: Seattle City Light
Mileposts: 158.05
Graham Harrison, WSDOT communications, 206-440-4702

                There are also closures on SR 900 for this work.

  • DRIVER ALERT: Friday, Sept. 19 to the morning of Sunday, Sept. 21 - All lanes of northbound and southbound I-5 between Boeing Access Road South and SR 599 will close nightly from 11:59 p.m. to 6 a.m. for Seattle City Light work. Lanes will begin closing at 9 p.m. with all lanes closed by midnight. Drivers will follow a signed detour.
  • DRIVER ALERT: Friday, Sept. 19 to the morning of Sunday, Sept. 21 - The Interurban Avenue on-ramp to northbound I-5 will close nightly from 11:59 p.m. to 6 a.m. for Seattle City Light work.  Drivers will follow a signed detour.
  • DRIVER ALERT: Sunday, Sept21 to the morning of Monday, Sept. 22 - All lanes of northbound and southbound I-5 between Boeing Access Road South and SR 599 will close from 11:59 p.m. to 5 a.m. for Seattle City Light work. Lanes will begin closing at 9 p.m. with all lanes closed by midnight. Drivers will follow a signed detour.
  • DRIVER ALERT: Sunday, Sept21 to the morning of Monday, Sept. 22 - The Interurban Avenue on-ramp to northbound I-5 will close nightly from 11:59 p.m. to 5 a.m. for Seattle City Light work. Drivers will follow a signed detour.
  • Northbound I-5 Detour –
    • All northbound I-5 traffic will be diverted to northbound SR 599, exit to Pacific Highway South, then continue onto South Boeing Access Road back to northbound I-5.
  • Southbound I-5 Detour –
    • All southbound I-5 traffic will be diverted to westbound South Boeing Access Road, exit to Pacific Highway South, then continue onto southbound SR 599 back to southbound I-5.

Last update: 11:15 a.m., 9/11
I-5: ATM signals maintenance
Mileposts: 158.05 - 164.00 
Louis Cannizzaro, WSDOT signals, 206-442-2118

  • DRIVER ALERT: Saturday, Sept20 to the morning of Sunday, Sept. 21 - Northbound I-5 will be reduced to one right lane from South Boeing Access Road to the I-90 interchange from 11:59 p.m. to 5 a.m. for electronic sign maintenance. The northbound I-5 off-ramp to Corson Avenue will also close. 

Last update: 1:04 p.m., 8/26
I-5: Bridge inspection
Mileposts: 164.00
James Malloy, WSDOT maintenance, 425-339-1778

  • Saturday, Oct. 4 - The right lane of northbound I-5 at the I-90 interchange will close 7:30 a.m. to 9:30 a.m. for bridge inspection.
  • Saturday, Oct. 4 - The left lane of southbound I-5 at the I-90 interchange will close 10 a.m. to 11 a.m. for bridge inspection.
  • Saturday, Oct. 4 - The right lane of southbound I-5 at the I-90 interchange will close 11 a.m. to 11:30 a.m. for bridge inspection.

Last update: 1:04 p.m., 8/26
I-5: Maintenance - Drilling
Mileposts: 167.02
Gordon Elley, WSDOT maintenance, 206-389-2077

  • Sunday, Sept. 21 to the morning of Monday, Sept. 22 - The left lane of northbound I-5 at Mercer Street will close from 9 p.m. to 5 a.m. for maintenance drilling work.

Last update: 4:06 p.m., 9/5
I-5: Maintenance - Sign work
Mileposts: 172.77
Marybeth Turner, SDOT communications, 206-684-8548
Get project information

  • Sept. 8 to mid-November - Northbound and southbound drivers using I-5 at Northgate Way may experience heavier than normal traffic volumes during peak times.
    • Seattle DOT will reduce Noth Northgate Way to one lane in the vicinity of I-5 while crews repave the roadway. this may cause heavier than normal volumes on the ramps from I-5 to N. Northgate Way.

Last update: 10:20 a.m., 9/9
I-5: Maintenance - Pavement repair
Milepost: 173.86
Lee Fanning, WSDOT maintenance, 425-587-3831

  • Friday, Sept. 26 to the morning of Saturday, Sept. 27 - The northbound I-5 off-ramp to Northgate Way will close from 9 p.m. to 6:30 a.m. for pavement repair. Drivers will follow a signed detour.
  • Saturday, Sept. 27 to the morning of Sunday, Sept. 28 - The northbound I-5 off-ramp to Northeast 130th Street will close from 9 p.m. to 6:30 a.m. for pavement repair. Drivers will follow a signed detour.

Last update: 11:26 a.m., 9/16
I-5: NE 117th Street to SR 104 pavement repair #8633
Mileposts: 173.15 - 177.76
John Chi, Project Engineer, 425-225-8741
Get Project information

   *Detour maps for ramp closures are available on the project website.* 

  • Monday, Sept. 15 to the morning of Friday, Sept. 19 - Up to three right lanes of southbound I-5 between Northeast 185th Street and Northeast 130th Street will close nightly from 8 p.m. to 5 a.m. concrete panel replacement.
  • Saturday, Sept. 20 to the morning of Sunday, Sept. 21 - Up to three left lanes of southbound I-5 between Northeast 175th Street to Northeast 130th Street will close from 9 p.m. to 9 a.m. for concrete panel replacement. 
  • Monday, Sept. 29 to the morning of Wednesday, Oct. 1 - The southbound I-5 off-ramp to Northeast 175th Street will close nightly from 9 p.m. to 5 a.m. for concrete panel replacement.
  • Monday, Sept. 29 to the morning of Friday, Oct. 3 - The Northeast 175th Street on-ramp to southbound I-5 will close nightly from 9 p.m. to 5 a.m. for concrete panel replacement.
  • Saturday, Oct. 4 to the morning of Sunday, Oct. 5 - The Northeast 175th Street on-ramp to southbound I-5 will close from 9 p.m. to 6 a.m. for concrete panel replacement.