Lynnwood Link extension

The 8.5-mile (13.7 km) light rail extension includes stations in Lynnwood, Mountlake Terrace, and Shoreline along Interstate 5.

[4] In April 2015, the final environmental impact statement (EIS) for the extension was released, and a Record of Decision from the Federal Transit Administration was received in July 2015.

[10] Testing of trains on the extension began in January 2024 and progressed in June to pre-revenue service with simulated schedules.

[15] Major changes to the bus network in Shoreline and Snohomish County, including the truncation of most commuter buses, are scheduled for September 14, 2024.

[16] Some Sound Transit Express buses will continue to connect Snohomish County to Downtown Seattle during peak hours to provide additional capacity until the 2 Line is extended in 2025.

Construction south of NE 145th Street, on a long section of viaduct, viewed from southbound I-5 in 2022