CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins90% CONFIDENCEOverall confidence: 90%How well the pin's source and references back up its dates.Weighted average of how firmly 1 reference, the source included, supports the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better342 days ago
Sound Transit's[1] opening-day release, dated 6 December 2025, says riders can board the extension "starting today".The nearly 8-mile extension runs south from Angle Lake along I-5 and adds Kent Des Moines, Star Lake and Federal Way Downtown stations. Sound Transit moved the $2.5 billion project's opening up from an earlier target of March 2026.
$2.5B