Time-lapse video shows how bridge in Portland, Ore., was moved

06/10/2013 | Popular Science

A time-lapse video lets viewers see how crews completed the complex lifting and moving of the 1,100-foot, 3,400-ton Sellwood Bridge in Portland, Ore. Teflon-padded tracks "doused with liquid soap" were built and hydraulic jacks used to lift the bridge onto "ski-like steel beams that could slide inside the tracks" and move the bridge "inch by inch to its new home."

View Full Article in:

Popular Science

Published in Brief: