Light rail update: Work begins to pour 10-foot-thick concrete floor of Broadway station

Emergence, uploaded
by BlinkingCharlie.

You can expect more noise and more trucks than usual this weekend as a 10-foot slab of concrete is poured to create the floor of the Broadway light rail station. Sound Transit's bulletin on the work slated to have begun early Saturday morning is below. Earlier this year, Sound Transit said crews will pour the slab over five Saturdays this spring.

With the arrival of the giant crane, and the tunnel boring machines soon to arrive, Sound Transit contractors are moving closer to the tunneling phase when three machines will bore tunnels from Montlake, under Volunteer Park and through to Broadway and from Broadway to downtown as part of the $1.9 billion project. You can see the tunneling routes and more about the tunnel boring machines, here. Sound Transit is planning some community activities to mark the start of tunneling. More details on that soon.

You can watch work at the construction site on Broadway between John and Denny here via our light rail web cam page.

We'll also soon have details to share from a recent exercise at the University of Washington College of Architecture and Urban Planning involving student projects to envision concepts for the Broadway station's "transit oriented development." We'll share details of that work and some of the cool ideas for the space soon.

Capitol Hill Station Concrete Slab

On Sat., March 26, starting as early as 4:00 a.m., Sound Transit’s contractor, JCM, will begin pouring another section of the concrete slab that will create the station floor. The floor is 10-feet thick and it will take several hours to pour approximately 6,000 cubic yards of concrete needed for the station floor. This work will fall outside of the project’s normal work hours and the contractor will be operating under a noise variance from the City of Seattle.

Expect increased concrete truck activity (40 to 45 trucks per hour) in the area. Seattle Police Officers will be posted at:

Broadway Ave & East Denny Way

and Broadway East & East John to help address any traffic impacts.