Sound Transit's 1 Line Opens to Federal Way
CONFIRMED90% CONFIDENCESound 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
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