At the east highrise near Medina, crews use large derrick barges to lift each girder into place. More than 300 girders will support the concrete roadway at each end of the new floating bridge.
More information about the new SR 520 floating bridge is available on our website.
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Under cloudy skies in Medina, a team work to install rebar for the east high-rise roadway deck for the new SR 520 floating bridge. Green, epoxy-coated rebar is used to protect the deck from rust and corrosion.
Visit the SR 520 pontoon tracking and bridge assembly page for the latest updates on bridge construction progress.
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Work continues at Pier 1 in Medina as crews complete the pier table on the south column and prepare to construct the pier table on the north column. Once complete, these pier tables will support roadway as it transitions from a fixed, land-based bridge to the floating bridge.
Tags: WSDOT SR 520 SR 520 Floating Bridge Pontoons KGM ^JW Washington State Department of Transportation State Route 520 Floating Bridge
Under blue skies, balanced cantilever construction continues at the south column of Pier 1 near the Medina shoreline. New roadway is taking shape and will soon connect with the first segment of balanced cantilever construction at Pier 2. Once complete later this year, a continuous section of roadway will span from Pier 3 on land in Medina all the way to Pontoon W, creating the first continuous section of roadway between land and the new SR 520 floating bridge.
For more information on balanced cantilever construction, see page 2 of our May 2013 Construction Newsletter.
Tags: WSDOT SR 520 Washington State Department of Transportation SR 520 Floating Bridge State Route 520 KGM Floating Bridge Balanced cantilever construction ^JW
After a four-day journey from Aberdeen, Wash. Pontoon DSW travels through the Montlake Cut as it enters Lake Washington. Pontoon DSW was the 39th pontoon to arrive on Lake Washington, out of a total of 77 pontoons needed to construct the new SR 520 floating bridge. Build your own Pontoon DSW by visiting our website.
Tags: WSDOT SR 520 Washington State Department of Transportation SR 520 Floating Bridge Pontoons State Route 520 KGM Floating Bridge ^JW