bridge presentation
DESCRIPTION
A bridge presentation with the Tower Bridge, and a bridge from A Welsh View.TRANSCRIPT
Tower Bridge
London, EnglandMy color picture:
(Actually of Tacoma Narrows bridge)
• A Special Bridge or Subway Committee was formed in 1876 to find a solution to the river crossing problem. It opened the design of the crossing to public competition
• Horace Jones ended up winning the competition.
Tower Information
• The tower construction lasted from 1886-1894.
• Cost was around $3,000,000.
• The twin hydraulic bascules ("bascule" comes from the French for "see-saw") weigh 1,000 tons each.
• The two towers each contain over 70,000 tons of concrete.
Function
• The function of the bridge is to allow car, buses cross the river, while allowing boats to also pass.
• It is a bascule bridge.• The bridge can open and close in
5 minutes.
Tower Information Continued
• There is a walkway that is 112 feet above water level so that people did not have to wait for the bridge to lower, it was closed in 1910
• It was closed due to pickpockets and prostitutes.
• It was also closed due to lack of use (people preferred to wait for the bridge and watch it).
• It has now been reopened as part of the museum they put in there.
The Tower Bridge is
better than that.
Works Cited• http://www.angelfire.com/in/uktravelinfo/towerbridge.html
• http://en.wikipedia.org/wiki/Tower_Bridge
• http://www.answers.com/topic/tower-bridge
• http://www.bbc.co.uk/history/society_culture/architecture/launch_pan_tower_bridge.shtml
• http://www.towerbridge.org.uk/TowerBridge/English/BridgeHistory/
• http://london.allinfo-about.com/features/towerbridge.html
• http://www.bbc.co.uk/history/society_culture/architecture/launch_pan_tower_bridge.shtml#
• http://www.civeng.carleton.ca/Exhibits/Tacoma_Narrows/TacomaNarrowsBridge.mpg• http://www.hartwell.demon.co.uk/tbpic.htm
THE END
Designer: Bus Driver
Created 1993
Dimensions: length of a bus
Type: Bus Bridge
Function: movement of people through back of bus out the front.