NOTE TO ALEX!!! Cite ur sources on the last 2 slides and follow th format I used. U only need one more bridge By: Jonas G, Alex F, and Matt R Bridges
Timeline Fact 1 • The first bridges were formed by nature such as a fallen tree over a stream or ditch.
Timeline Fact 2 • The first man-made bridges were built by the Romans during B.C. times. The first being Pons Sublicius, a timber bridge over the Tiber River.
Bridge Types • Beam • Cantilever • Arch • Truss • Suspension • Cable-stayed • Movable • Floating
Bridge 1: Golden Gate Bridge • The Golden Gate Bridge spans about 9000 feet across the Golden Gate in San Francisco CA. • It is a suspension, truss arch bridge over the bay 746 in the air.
Bridge 2: The Great Belt Bridge • Also known as the Storbaelt Bridge, it crosses “The Great Belt” at a length of 22 thousand feet. • The suspension bridge connects Zealand and Funen in Europe.
Bridge 3: Sidney Harbor Bridge • This Single-Arch Bridge crosses Port Jackson in Sydney, Australia. • It is 3770 feet long and is also known as “The Colin.”
Bridge 4: Tower Bridge Of London • This bascule-suspension bridge stretches 801 feet over the Thames River.
Works Cited • http://www.historyworld.net/wrldhis/PlainTextHistories.asp?historyid=ab97 • http://chestofbooks.com/reference/Encyclopedia-Britannica-2/History-Of-Bridge-Building.html • http://encarta.msn.com/encyclopedia_761561057/Bridge_(structure).html • http://en.wikipedia.org/wiki/Golden_gate_bridge • http://www.journeyetc.com/travel-destinations/5-most-famous-bridges/
Pictures • http://upload.wikimedia.org/wikipedia/commons/0/0c/GoldenGateBridge-001.jpg • http://upload.wikimedia.org/wikipedia/commons/7/77/Storeb%C3%A6ltsbroen_from_Sj%C3%A6lland.jpg • http://photography.nationalgeographic.com/staticfiles/NGS/Shared/StaticFiles/Photography/Images/POD/s/sydney-harbor-bridge-76913-sw.jpg