The new Roosevelt Station of Sound Transit's Northgate Link Extension is now more than 95 percent complete and quickly becoming a key component to showing that the 4.3-mile light rail extension north of downtown Seattle is on track to serve riders in 2021.

Sound Transit is extending its line north, south, east and west with the goal of connecting the entirety of the Puget Sound through light rail track. The Downtown Redmond Link Extension serves as the next step in that expansion.

Sound Transit's continued expansion both in and around the Seattle area continues as it pushes north toward Snohomish County for the first time.

The SkyTrain light rail cars keep showing up throughout British Columbia as TransLink adds 24 new cars in September to help handle increased service on the Expo and Millennium lines in the metro Vancouver region, while another 24 cars will grow Canada Line's service in 2020.

A Metro and TriMet-led discussion about future solutions for mass transit throughout Portland led to the concept of a tunnel under the Willamette River in downtown Portland.

Sound Transit's Blue Line trains won't travel across Interstate 90 from Seattle to Bellevue until 2023, but the effort to engineer how light rail will make the trip across a floating bridge — for the first time ever, anywhere — has been ongoing for years.

The first 300 ft of Sound Transit light rail track is now laid for the 2.4-mile light rail extension through Tacoma's Stadium District and Hilltop neighborhood.

With trains scheduled to roll along 12 new miles of light rail track in Portland by 2027, planning on the TriMet expansion continues to move forward, both on the proposed route and 13 stations between Portland State University in Southwest Portland and Bridgeport Village in Washington County.

As Sound Transit moves closer to building the 7.8-mile-long Federal Way Link Extension light rail project, the selection of Kiewit Infrastructure West Company to design and build the project marks a major milestone.