Stride S1 Line

Adding new bus rapid transit service along I-405 and SR 518 between Bellevue and Burien.
Map depicting S1 line stations

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Overview

The Stride S1 Line will connect communities along I-405 and SR 518 from Bellevue to Burien. Like all Stride routes, buses on the S1 Line will run every 10 to 15 minutes, 17+ hours per day. The S1 Line will connect to Link light rail stations at the Bellevue Transit Center, above the Bellevue Downtown Station, and Tukwila International Boulevard Station. The S1 Line will provide seamless transfers to transit services provided by Sound Transit, Community Transit, and King County Metro. The Stride S1 and S2 fleet will consist of double-decker battery-electric buses, as shown in the graphic below.

Illustration of Stride S1 and S2 bus

The project will build five Stride stations, including a new transit center in Renton. New parking will be available at two of these stations by 2034: the future transit center in Renton and NE 44th St Station. 

As part of the Washington State Department of Transportation (WSDOT) I-405 Master Plan, the S1 Line will benefit from highway improvements for faster travel. In partnership with WSDOT, we aim to improve community safety, transit access, and the travel experience within the I-405 corridor.