SR 520 Eastside, June 2011 Closure
From June 17-20, 2011, crews closed SR 520 for construction on the east side of Lake Washington. The centerpieces of the work included the demolition of a pedestrian bridge near Medina and the installation of a massive prebuilt concrete fish-passable culvert in Bellevue.

Crews quickly carved a 30-foot-deep trench across all lanes of SR 520 west of Bellevue Way Northeast and installed concrete panels spanning 130 feet. The new, larger culvert will improve fish migration and is the first of eight culverts crossing SR 520 that will be installed between Medina and Bellevue during the next three years.

The work was part of the Eastside Transit and HOV Project, which will widen SR 520 to six lanes from Medina to Bellevue. The project includes rebuilding interchanges, installing fish-passable culverts, and building highway lids and transit stops in the center of the highway. WSDOT awarded the $306 million design-build contract to Eastside Corridor Constructors (ECC), a joint venture of Granite Construction Company and PCL Construction Services.

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