Columns and walls have been built for the first level of Sound Transit's new Federal Way Transit Center to the west of I-5 at S. 317th Street.
Down in the excavation to the right of the southbound temporary roadway workers place forms for the second support pier for the new S. 317th Street bridge.
We've set up a crusher plant near the S. 320th Street exit ramp to crush the old southbound I-5 pavement. We'll recycle the crushed material by using it as a base under the new pavement.
Workers installing a catch basin for the drainage system on the right shoulder of southbound I-5 north of S. 320th Street.
To prepare the southbound lanes for new pavement, crews are grading the roadway. They're using global positioning satellite (GPS) technology to guide the elevation of the grader blade.
Crews are done removing the old southbound I-5 pavement and are preparing the roadway for the new pavement.
Driving piles to shore up the area where the second S. 317th bridge support will be built. Traffic travels on the temporary roadway beyond the piles.
Workers installing conduit near the S. 320th exit ramp. The conduit will contain parts of the electrical system that runs ramp meters and traffic cameras.
Rubble from the old southbound I-5 pavement sits in a huge pile near the S. 320th exit ramp. The crushed rubble will be used as a base under the new pavement.
Crews are loading the old southbound I-5 pavement into dump trucks in the work zone between the temporary roadway (left) and the S. 320th exit ramp (right). The trucks take the rubble to an on-site crusher.
Workers are now building a retaining wall to the north of the S. 317th bridge abutment (notice the abutment toward the upper left of this photo). You can see the wood forms that will hold the concrete for the wall footing, and some of the steel has been placed for the wall panels.