- About Us
Upcoming closures for SR 18 in Federal Way
Drivers should expect overnight closures this week on State Route 18 in Federal Way.
Crews will close one direction of the highway near I-5 while large concrete bridge girders are lifted into place. From July 27 through the morning of July 29, crews will close westbound SR 18 near I-5 from 11 p.m. to 4 a.m. Wednesday and Thursday. A four-mile detour will direct traffic onto northbound I-5 to S. 320th Street, then onto southbound I-5.
Starting Aug. 8, the ramp from westbound SR 18 to northbound I-5 will be closed for the remainder of the month. Crews will be rebuilding the ramp to make room for a new flyover ramp. Traffic will be detoured onto northbound SR 99.
This work is part of a $112 million project to improve safety and ease congestion at the I-5/SR 18/SR 161 interchange. Click here to learn more.