Construction will occur between I-405 in Bellevue and West Lake Sammamish Parkway in Redmond. New concrete sections will be built between March and May 2009 near five overpass bridges. The mainline highway will be repaved in summer 2009.
In the westbound direction, the project runs from milepost 7.08 to 10.74 and eastbound from milepost 7.58 to 11.4.