Insight: Autumn 2008

Autumn 2008

1001 Words: Off (Ramp) & Running

SR 522 Off Ramp Project

Work is well underway on the long awaited SR 522 off ramp project that will enable UW Bothell and Cascadia Community College to grow to serve 10,000 full-time students. The project is on track to finish in the fall of 2009.

In late August crews placed five 128 foot-long bridge girders using two 150-ton cranes. Additionally, workers are creating the signature portion of the project -- a 95-foot-tall retaining wall called a soil nail wall. It will be the tallest ever constructed by the Washington State Department of Transportation. To stabilize the wall, crews are drilling more than 1,400 nails into the side of the hill with each nail ranging in length from 50 to 85 feet.

For updates and more info visit the project page on the Washington State Department of Transportation Web site.