The San Francisco-Oakland Bay Bridge celebrated its 75th anniversary this week. At its opening, November 12, 1936, the bridge was the longest in the world. To this day, it remains one of the busiest bridges in the world. The San Francisco-Oakland Bay Bridge spans 8.4 miles, and was the longest bridge ever attempted.
Interestingly enough, the technology in 1933 was not capable of producing a single suspension bridge linking San Francisco and Oakland. The bridge is actually two separate bridges kinked to a giant concrete anchor in the middle of the bay. The 75 year old bridge’s connections are so seamless, most drivers hardly notice the anchorage.
Interested in teaching your students more about Engineering? Check out SSR's Vol 41 DVD, episode Engineering – Bridges by Design. If your school would like to receive this free resource, visit http://www.ssrvideo.com/nhcmsp.html.
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