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, amidst the nation's largest light rail expansion, has put its sights on a preferred route with station locations for a 9.7-mile Tacoma Dome Extension while announcing the general contractor for the upcoming Downtown Redmond Link Extension.
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.