Video: San Francisco–Oakland Bay Bridge time lapse

Over 42,000 hours of construction captured in four-minute video

The San Francisco–Oakland Bay Bridge, known locally as the Bay Bridge, is a complex of bridges spanning San Francisco Bay in the US state of California.

The original bridge took three years to complete in the 1930s, but the recent reconstruction of the eastern section of the bridge took almost 11 years.

During the 1989 Loma Prieta earthquake, a part of the eastern section's upper deck collapsed onto the lower deck and the bridge was closed for a month.

Reconstruction of the eastern section of the bridge as a causeway connected to a self-anchored suspension bridge began in 2002. The new bridge opened 2 September, 2013 at a reported cost of over $6.4bn and is currently the world's widest bridge, according to Guinness World Records.

Thanks to Earthcam time lapse technology, more than 42,000 hours of construction has been captured in this four-minute video.

Cameras were on site from 2008 to document progress, archiving nearly two million images for the build.



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