Project updates
Learn about where and when construction is happening throughout the ST district.

Overnight closure of off-ramp to westbound State Route 104 and off-ramp to SR 104 eastbound

Publish Date

On Sunday, March 7, Sound Transit’s contractor will work overnight at the State Route (SR) 104 and NB I-5 interchange. All lanes of traffic on SR 104, the off-ramp from I-5 NB to SR 104 WB, and the on-ramp from SR 104 EB to I-5 NB will be closed while work is underway. Detours will be provided (see map). The contractor has obtained a Temporary Noise Variance to complete this work. 

What

Moderate construction and engine noise at night to construct columns for future bridge and mobilization of machinery at the I-5 SR 104 interchange. 

When

  • Overnight Sunday, March 7, through Monday morning, March 8 
  • The Temporary Noise Variance will be in effect from Monday 10:00 p.m. - Tuesday 7:00 am.
  • Nighttime closures and detours will be in effect from, 12:00 a.m. – Tuesday, 5:00 a.m. 

Where

  • Northbound I-5 off-ramp to Westbound SR 104.
  • Eastbound SR 104 to on-ramp for Northbound I-5.
  • SR 104 all lanes will be closed from I-5 ramps on east side to west side of interstate bridge.

More

  • There will be posted signs for detours (see map).
  • Plan ahead, leave early and allow extra time to reach your destination.
  • Please be prepared for delays while this work takes place.  
Construction map for SR 104 night work, Lynnwood Link Extension