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Kiewit/General/Manson, a Joint Venture has been awarded the SR 520 Floating Bridge & Landings project for WSDOT, a $586M project with a 7% DBE Goal. The project started in late 2011 and our goal is to open the new bridge to traffic as soon as December 2014. The existing bridge will subsequently be demolished throughout 2015.

This design-build contract includes:

• Building 44 supplemental concrete pontoons and 58 anchors using casting facilities in Port of Tacoma and Kenmore.
• Towing the 33 pontoons built in Grays Harbor, under Kiewit-General’s SR 520 Pontoons contract, and assembling the floating bridge on Lake Washington.
• Constructing a six-lane superstructure on top of the assembled pontoons with wider shoulders, a transit/HOV lane in each direction, and a 14’ bicycle/pedestrian path. The overall bridge super structure will be a combination of: low level spans made up of pre-cast segmental deck panels, precast & steel plate girder spans transitioning from the low level to the high level structures, and cast in place segmental spans over the navigational channels.
• Building a new maintenance facility and dock on the east shore of Lake Washington to service the bridge.
• Constructing ~1/2 mile of new at grade roadway section.

Subcontracting opportunities include, but are not limited to, the following areas:

Please download, complete and return the Notice of Interest form if you want to be notified of available subcontracting opportunities on the SR 520 Floating Bridge & Landings project for WSDOT. You can return the form by email at the contact information below. For additional information on contracting opportunities, please contact, Russell Streadbeck.

KGM, A Joint Venture
Russell Streadbeck
425-576-7100
Russell.Streadbeck@kiewit.com