How Sound Transit was established
In the early 1990s, the Washington State Legislature authorized King, Pierce and Snohomish counties to create a single agency — The Central Puget Sound Regional Transit Authority (Sound Transit) — to plan, build and operate a high-capacity transit system within the region’s most heavily travelled corridors. The Sound Transit District includes the three-county area’s urban centers and close to half of the state’s population. In September 1993, the Sound Transit Board of Directors held its first official meeting.