Sound Transit opened its first light rail operation in the Seattle area in 2009.

The 7,200-ft-long stretch of track that runs along Interstate 90 on Mercer Island includes a special construction component.

Take a look at five of the larger stories to watch in Washington and Oregon in 2019.

More than 90,000 vehicles traveling the viaduct each day will need to scatter to limited options.

Washington State Ferries split the Mukilteo ferry terminal project near Everett into two contracts after rejecting previous bids in August. 

Intense planning is underway regarding how to safely demolish the 1.4-mile concrete double-decker Alaskan Way Viaduct, beginning in February.

With 18 different construction projects under consideration, Portland's plan aims to change the city’s approach to its downtown transportation infrastructure. 

The dream to bring Major League Baseball to Portland, Oregon, has a likely location, even if the backers of the Portland Diamond Project still lack a team.

Sound Transit is using two movable forms for concrete, known as 'travelers', and specialized cranes to build a new guideway over Interstate 90.