Federal Way Link Extension
Building light rail further into south King County

News and updates

New columns to support light rail tracks to Federal Way rise in SeaTac.

The Platform

Fresh pics: Light rail rising in South King County

Link light rail construction south from the SeaTac to Federal Way has passed the 25 percent mark as the new line rises from the ground along the new 7.8-mile route. Crews broke ground last July for…

Construction map for SR99 Bypass, Federal Way Link Extension

Project update

Temporary bypass installed on SR 99 in SeaTac

Sound Transit opened a temporary bypass around a short stretch of State Route 99 in SeaTac between South 204th and South 208th Streets. Our crews shifted lanes eastward from the main roadway to make…

Project update

Road closure on north end of 30th Ave S and lane closure on Kent Des Moines Road

What Sound Transit’s contractor will clear trees in preparation for future work on the bridge over Kent Des Moines Road.  This work will require a full closure of the north end of 30th Ave S as…

News release

Closure of Intersection at 30th Ave. S and Kent/Des Moines Road for Federal Way Link construction

Crews working on the Federal Way Link Extension will be closing the intersection at 30th Avenue South and Kent/Des Moines Road starting Feb. 5 for tree removal. The closure is expected to last until…

Project update

S 272nd Street westbound right lane closures from 26th Ave S to I-5

What Sound Transit’s contractor will conduct utility work along S 272nd Street resulting in westbound right lane closures.  Pedestrian detour will be in place on the north side of S 272 from…

Project update

CANCELED: Highway 99 closure between S. 204th and S. 208th to move equipment across the roadway

UPDATE 1/29/2021: This closure is CANCELED as the contractor will be able to remove the equipment without having to close traffic. What Sound Transit's contractor will be closing Highway 99 between…

News release

Closure on State Route 99 for Federal Way Link construction

Crews working on the Federal Way Link Extension will be closing State Route 99 between South 204th Street and South 208th Street in SeaTac to move construction equipment across the roadway. …

Project update

Highway 99 closure between S 204th and S 208th to move equipment across the roadway

What Sound Transit’s contractor will be closing Highway 99 between S 204th St and S 208th for crane mobilization.  For the detour, drivers will be directed to 24th Ave S /26th Ave S between S…

Project update

Traffic disruptions at S 317th St and Gateway Center Blvd for removal of Hi-5 artwork

What Sound Transit contractors will remove existing public artwork in preparation to construct the elevated guideway bridge over S 317th for light rail.  Artwork will eventually move to the…

Project update

Highway 99 closure between S 204th and S 208th to complete and open new bypass/detour

What Weekend and night closures of Highway 99 January 15th at 8pm through January 17th at 8pm to complete work on the SR 99 bypass/detour and open for traffic on Monday, January 18. For the…