Watch a bridge get built in 4 minutes

The Oakland Bay Bridge, originally built in 1936 by the same general contractor that built the Verrazano Bridge, had one of its spans replaced recently into a cable-stayed bridge. Cable-stayed bridges are becoming a new trend in structural design as more bridge replacement projects (like the new Goethals and Kosciuszko Bridges) are taking on the “fanned” suspension cables over traditional vertical suspensions or trusses that older bridges exhibit. This four minute video shows construction on the Oakland Bay Bridge over a time-lapse using Earthcam.