Nighttime lane closures of southbound I-5 planned near Mountlake Terrace

Publish Date

In order to establish safe work zones for Lynnwood Link Light Rail construction, Sound Transit's contractor will be implementing nighttime traffic controls including the closure of Interstate 5 southbound lanes between 220th and 236th streets southwest and the closure 220th Street Southwest southbound I-5 on-ramp. Drivers should expect delays and consider using alternate routes during construction (see map). Plan ahead, leave early and allow extra time to reach your destination.

Please see below for closure dates, times and details. All closures are southbound.

March 7 and 14 Saturday night into Sunday morning

  • 2 right lanes of southbound I-5 will be closed: 10 p.m. to 7 a.m.
  • 220th Street southbound I-5 on-ramp closed: 10 p.m. to 7 a.m. (Follow signed detour)

March 20 and 21 Friday night into Sunday Morning

  • 2 right lanes of southbound I-5:
    • 9 p.m. – 9 a.m. (March 20, Friday night into Saturday Morning)
    • 7 p.m. to 9 a.m. (March 21, Saturday night into Sunday Morning)
  • 220th Street Southwest southbound I-5 on-ramp closed: 9 p.m. to 9 a.m. (Follow signed detour)

March 27 and 28 Friday night into Sunday Morning 

  • 2 right lanes of southbound I-5:
    • 9 p.m. – 9 a.m. (March 20, Friday night into Saturday Morning)
    • 7 p.m. to 9 a.m. (March 21, Saturday night into Sunday Morning)
  • 220th Street Southwest southbound I-5 on-ramp closed: 9 p.m. to 9 a.m. (Follow signed detour)

Where

Southbound I-5 from 220th Street Southwest to 236th Street Southwest

More

Work will consist of drilling for support shafts for the future Lynnwood Link Extension Guideway.

Map of southbound Interstate 5 lane closures between 220th and 236th streets southwest.