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SR 520 reopened after weekend construction

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Date:  Monday, June 04, 2012

Contact: Jeff Switzer , WSDOT SR 520 Communications, 206-770-3547 (Seattle)
Go online for SR 520 Flickr photos , closure information and Puget Sound construction information .

Next closure scheduled July 13-16 for construction, annual bridge inspection

SEATTLE – Another old overpass is history and State Route 520 has reopened after a busy weekend of demolition and construction to improve the corridor from Medina to Bellevue. Crews crunched down and recycled the old 92nd Avenue Northeast overpass to make room for a future lidded overpass, and installed the last 34 huge concrete girders needed for a similar lidded overpass at Evergreen Point Road.

Two cranes worked through the weekend in Medina to place concrete girders that totaled more than 2,600 tons – and if placed end-to-end would stretch more than two-thirds of a mile. All 82 girders needed for the improved Evergreen Point Road overpass are now in place.

“Seeing that 82nd girder going in at Evergreen Point Road marks a great milestone for the project, and really shows the size and shape of the future lidded overpass overlooking Lake Washington,” said Brian Dobbins, SR 520 Eastside project construction manager for the Washington State Department of Transportation. The Evergreen Point Road lidded overpass is expected to be completed in spring 2013.

By demolishing the old 92nd Avenue Northeast overpass, crews now have the room needed to build support walls for a new lidded overpass at that location. Traffic from 92nd Avenue Northeast previously was shifted to a portion of the newly built overpass. Construction and demolition this weekend required an estimated 150 workers throughout the corridor.

To do the work safely, crews closed the highway between Montlake Boulevard in Seattle and Interstate 405 in Bellevue starting Friday night. Drivers were detoured to Interstate 90 and other regional highways to get across and around Lake Washington.

The work is part of a project to widen the highway to six lanes on the Eastside, add transit stops in the median and improve neighborhood connections across SR 520. Crews are rebuilding interchanges, constructing highway lids and bus stops in the center of the highway and installing fish-friendly culverts. In 2010, WSDOT awarded a $306 million design-build contract to Eastside Corridor Constructors, a joint venture of Granite Construction Company and PCL Construction Services.
The completed Medina to Bellevue corridor is scheduled to open to traffic in December 2013. More information about the SR 520 Eastside project is online at

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