SR 520 Weekend Maintenance and Eastside Project Construction Closure - July 9-11, 2011
From July 9-11, crews closed SR 520 for construction on the east side of Lake Washington and for annual bridge maintenance.

During the weekend closure, crews installed a new culvert that measures 230 feet long and 12 feet wide. Environmental regulations allow WSDOT to work in or near streams only until mid-September to avoid harming migrating fish.

The new, larger culvert will improve fish migration and is the second of eight total culverts 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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