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Bridges. Kelsey Grice Michael Preston Jenna Carlson Period 5 . Truss. Arch. Cable Stayed. Girder. Suspension. Golden Gate. Humber . Sunshine Skyway. Sydney Harbor. Tsing Ma. History of Bridges. In the fourth century the strongest bridge was made out of bamboo and iron chains.
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Bridges Kelsey Grice Michael Preston Jenna Carlson Period 5
History of Bridges • In the fourth century the strongest bridge was made out of bamboo and iron chains. • The oldest bridge was in china and built from the 595 to 605 AD • In the 19th century for longer bridges they used wrought iron.
History of Bridges • In 1784 the first know cable stayed bridge was built. • In 1954 the first sunshine skyway was opened • In 1971 people worked to expand the sunshine skyway to make it in to 2 lanes going in both directions. • On May 9, 1980 a boat hit the sunshine sky way which made the bridge claps.
History of Bridges • The Sydney harbor bridge was built on march 19, 1932. • In 1932 the bridge was open. • The Sydeny harbor opened up its first tram for the bridge.
History of Bridges • The sunshine skyway was completed on may 27, 1937 • On January 5,1933 the bridge was started to be worked on. • People thought before the built of the bridge they thought it was not going to be able to be built.
History of Bridges • Work on the bridge started in 1972 • The Humber bridge was open to the traffic in the 1981. • The north tower was finished before the south was done in 1974. • The south tower was finished in 1976.
Sites • http://www.geocities.com/pagesbydave/SunSkyDemoHis.html