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George P. Coleman Bridge

George P. Coleman Bridge . George p. Coleman Bridge. George P. Coleman Bridge was build in 1952 in Yorktown virgina . In 1995 it was reconstruction in to the largest double-swing-span bridge in the United States in only 9 days.

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George P. Coleman Bridge

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  1. George P. Coleman Bridge

  2. George p. Coleman Bridge George P. Coleman Bridge was build in 1952 in Yorktown virgina. In 1995 it was reconstruction in to the largest double-swing-span bridge in the United States in only 9 days. It cost 9 million to build the original in 1952 and 76.8 million to reconstruction.

  3. History • George P. Coleman Bridge was originally build as a two lane highway to carry no more than 15000 vehicles a day, but as population increased more and more vehicles drive on it. about 27000 vehicle drive on it per day. So they rebuild in to a double swing span. Now carry up to 50000 vehicle daily. To make matters worse, the machinery that rotated the massive swing spans often experienced mechanical problems. In short, the bridge was a major headache.

  4. Engineer • George P. Coleman Bridge • The engineer were Parsons Brinkerhoff . • One of the world's leading planning, engineering, and program and construction management organizations.

  5. Material • George P. Coleman Bridge is made of lightweight, high-strength steel and concrete. • The Environmental and social impacts are Grouted Duct and Cap Pockets Details

  6. Fact • The George P. Coleman Bridge is the largest double-swing-span bridge in the United States and the second largest in the world. • The new bridge weighs 25 percent more than the original because the new spans are made of lightweight, high-strength steel. • The two main river piers contain mechanisms that lift the swing spans to different elevations so they don’t hit each other when they rotate.

  7. Websites • http://mceer.buffalo.edu/education/Bridge_Speaker_Series/2010-2011/presentations/Ralls_handouts.pdf • http://www.roadstothefuture.com/Coleman_Bridge.html • http://www.bookrags.com/wiki/George_P._Coleman_Memorial_Bridge • http://www.yorkcounty.gov/LinkClick.aspx?fileticket=9XYBUhIro%2FY%3D&tabid=12139&mid=13742

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