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Bridges

Bridges. Chelsea Rose and Tianna Sunderland. Timeline. The first bridge ever built was in 53 ad. Timeline (cont.). First iron bridge ever built was in 1779 which is called Ironbridge Gorge, in Shropshire, England. Timeline (cont.).

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Bridges

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  1. Bridges Chelsea Rose and Tianna Sunderland

  2. Timeline • The first bridge ever built was in 53 ad.

  3. Timeline (cont.) • First iron bridge ever built was in 1779 which is called Ironbridge Gorge, in Shropshire, England.

  4. Timeline (cont.) • The first bridge in the united states was an iron bridge and was built in 1839.

  5. Timeline (cont.) • The niagara falls suspension bridge was built in 1855.

  6. Timeline (cont.) • One of the most famous bridge disasters happened on december 28, 1879 and it was the Tay Bridge disaster.

  7. Timeline (cont.) • The longest bridge in florida is the Seven Mile Bridge and was built in 1912.

  8. Timeline (cont.) • The first bridge that collasped was the Tacoma Narrow Bridge on May 4, 1940

  9. Timeline (cont.) • The longest bridge in the world is 23.87 miles Lake Pontchartrain Causeway and was built in 1956.

  10. Timeline (cont.) • The Millau bridge is the tallest bridge in the world. It is 984 feet tall built in November 3, 2004.

  11. Timeline (cont.) • Where the tacoma bridge stood is a new bridge and it was opened july 15, 2007.

  12. Types of bridges • Beam- is a simple bridge it could be as simple as a planks of wood. To hold up the beam two or more supports are added.

  13. Types of bridges • Arch-curving to the ground weight is cared outward to the two paths

  14. Types of bridges • Cantilever-to support the bridge two beams are connected. They must be anchored to hold up.

  15. Types of bridges • Suspension- cables connect the deck to the towers which transfers weight to each other.

  16. Types of bridges • Truss- a bridge that is made up of one or more triangles put together with staight poles which is connected to joints.

  17. Real bridges • The Seven Mile Bridge- The length of this bridge is 35,862 ft or 6.79 miles so it isnt exactly 7 miles.

  18. Real Bridges (cont.) • Khaju Brigde of Istafan Iran- is 105 meters long.

  19. Real Bridges (cont.) • Pont Du Gard of France- wasused to carry freshwater for the people of nimes.This is bridge is 900 feet long and 160 feet in the air.

  20. Real Bridges (cont.) • The Millau bridge- over the tarn river in the Massif Central mountains which is more than 300m (984ft) high in the air.

  21. Real Bridges (cont.) • Dames Point Bridge- It goes from St. Johns River to Jacksonville, Fl. It is two miles long, and 175 feet high.

  22. All websites • http://www.greatbuildings.com/buildings/Pont_du_Gard.html • http://news.bbc.co.uk/2/hi/europe/4091813.stm • http://www.mikestrong.com/dames/ • http://www.fhwa.dot.gov/rakeman/1839.htm • http://en.wikipedia.org/wiki/Tacoma_Narrows_Bridge • http://en.wikipedia.org/wiki/Niagara_Falls_Suspension_Bridge • http://library.thinkquest.org/J002223/types/types.html

  23. http://library.thinkquest.org/J0113129/DB~1.HTM • http://archaeology.about.com/od/pterms/g/pontdugard.htm • http://www.trekearth.com/gallery/Middle_East/Iran/photo396223.htm

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