Preparing for a deck slab pour
Kiewit-General pontoon construction crews prepared the deck of cross pontoon A before pouring concrete. In this photo, a worker uses compressed air to clean out the intricate web of steel rebar and post-tensioning ducts. Photo taken March 5, 2013 in Aberdeen, Washington.
Construction is complete on the second cycle of SR 520 bridge pontoons in Aberdeen. In this cycle, crews built six total pontoons:
• Three longitudinal pontoons (360 ft. x 75 ft. x 29 ft.)
• One cross pontoon (270 ft. x 75 ft. x 33 ft.)
• Two supplemental stability pontoons (98 ft. x 60 ft. x 28 ft.)
Preparing for a deck slab pour
Kiewit-General pontoon construction crews prepared the deck of cross pontoon A before pouring concrete. In this photo, a worker uses compressed air to clean out the intricate web of steel rebar and post-tensioning ducts. Photo taken March 5, 2013 in Aberdeen, Washington.
Construction is complete on the second cycle of SR 520 bridge pontoons in Aberdeen. In this cycle, crews built six total pontoons:
• Three longitudinal pontoons (360 ft. x 75 ft. x 29 ft.)
• One cross pontoon (270 ft. x 75 ft. x 33 ft.)
• Two supplemental stability pontoons (98 ft. x 60 ft. x 28 ft.)