System expansion

With voter approval in 1996, 2008 and 2016, Sound Transit is building the most ambitious transit expansion in the country, with new service opening every few years.
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Latest project updates
March 18, 2019 Edmonds and Mukilteo Stations Parking and Access Improvements

Help guide Sound Transit investments at Edmonds and Mukilteo Stations

March 18, 2019 East Link Extension, Bel-Red/130th Station

Nighttime roadway closure on NE Spring Blvd. starting Monday, March 25

The Platform
Amid all of the hype around tunnels this month, we here at The Platform thought it would be a fitting time to check in on the progress of the new…
Beginning soon community members will start seeing progress take root on a powerful new alternative to I-5’s rising congestion. Light rail is coming…
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Latest project documents
I-405 Bus Rapid Transit

I-405 Bus Rapid Transit February 2019 Elected Leadership Group presentation

(PDF Document | 1MB) Updated 03/15/2019
I-405 Bus Rapid Transit

I-405 Bus Rapid Transit Phase 1 Project Refinements Executive Summary

(PDF Document | 6MB) Updated 03/15/2019
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