Prior to ocean towing, all pontoons are inspected by pontoon contractor Kiewit-General Joint Venture, the Washington State Department of Transportation, floating bridge contractor Kiewit/General/Manson, A Joint Venture, and the floating bridge contractor’s insurance agent. Additional inspections will take place on Lake Washington after the pontoons arrive in Seattle.
Pontoon tracking details are posted online.
Construction is underway on the next cycle of six pontoons in Aberdeen. An additional cycle of eight pontoons is due this winter from Tacoma. A new staging area is under construction on the west end of the SR 520 floating bridge on Lake Washington.
More information about the SR 520 Bridge Replacement and HOV Program can be found atwww.wsdot.wa.gov/projects/sr520bridge.