Climbing high
Suspended over 20 feet above the pontoon's keel, ironworkers build the complex inner steel structure that provides the pontoon with its strength. Photo taken June 20, 2013 at the pontoon construction site in Aberdeen, WA.
Construction crews are underway on the third cycle of SR 520 bridge pontoons in Aberdeen. In this cycle, crews will build six total pontoons:
• Four longitudinal pontoons (360 ft. x 75 ft. x 29 ft.)
• Two supplemental stability pontoons (98 ft. x 60 ft. x 28 ft.)
Climbing high
Suspended over 20 feet above the pontoon's keel, ironworkers build the complex inner steel structure that provides the pontoon with its strength. Photo taken June 20, 2013 at the pontoon construction site in Aberdeen, WA.
Construction crews are underway on the third cycle of SR 520 bridge pontoons in Aberdeen. In this cycle, crews will build six total pontoons:
• Four longitudinal pontoons (360 ft. x 75 ft. x 29 ft.)
• Two supplemental stability pontoons (98 ft. x 60 ft. x 28 ft.)