Light rail is undergoing a multibillion, multi-decade expansion in the Puget Sound region, moving in all directions from Seattle through tunnels, over bridges and across bodies of water as Sound Transit pursues a dozen projects.
On the heels of a 2016 opening that sent light rail 3.15 miles—at a cost of $1.76 billion—to the University District from downtown, other major projects include a $1.89-billion, 4.3-mile extension to Northgate, expected to open in 2021; a 3.15-mile, $3.67-billion project to send light rail across Interstate 90’s floating bridge from Seattle to points east, including Bellevue; and an 8.5-mile, $2.77-billion project to extend to Lynnwood.