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

Overnight lane closures on S 320th St in Federal Way

Publish Date

What

Sound Transit contractors will close the two westbound lanes of S 320th St in Federal Way overnight.

When

Monday-Thursday nights 10 p.m. – 5 a.m. for approximately two months starting as early as July 5

Where

Two westbound lanes of S 320th St from I-5 to 21st Ave S

More

  • Work will occur from 10 p.m.- 5 a.m.*
  • Access to driveways and cross streets will be maintained
  • Traffic in both directions will be maintained
  • Nighttime lighting
  • Cranes and other heavy equipment will be used
  • A safe and secure work site


*Weather dependent

Construction map for South 320th Street lane closure, Federal Way Link Extension