On Aug 30, Sound Transit will open the Link Line 1 extension from Northgate to Lynnwood to passengers. This will complete two phases of northward expansion of the Link rail system, part of the ST2 sales tax approved by voters in 2008. It will also expand light rail service to Snohomish County.

The extension features four new stations in the cities of Shoreline, Mountlake Terrace, and Lynnwood. All the new stations will have parking available. The light rail alignment is all above ground on exclusive right of way, adjacent to the I-5 freeway, and have no at-grade crossings. The service is planned to operate every 8 minutes during peak hours and every 10 minutes midday and on weekends.