Pontoon construction continues

A carpenter carries formwork to the pontoon casting basin. Photo taken March 14, 2013.

 

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.)

Done