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London's Tower Bridge, which crosses the Thames near the Tower of London is a Bascule bridge whereby two halves of the bridge swing into the air to let tall ships pass underneath. The mechanism is made of steel but encased in stone for the sake of appearance. Naturally the road surfaces are tarmacadam.
Steel and Metal
What else can I help you with?
What fort did George Washington build?
the bridge i think (pretty sure)
Why did the Brooklyn bridge take longer to build than the george Washington bridge?
cassions were in the way
What materials used to build the George Washington Bridge?
k;kmk;.k
What major innovations were needed to build the George Washington bridge?
question not answered
What date did George Washington build Washington D.C.?
George Washington did not build Washington, D.C. It was named after him. It held it's first assembly in 1800.
What was the material to build London bridge?
iron
What materials were used to build the nelson Mandela bridge?
The material used to build the bridge was wood and steel
What material did they build the London bridge out of?
The current London Bridge is a pre-stressed concrete box girder bridge.
What material did they use to build the Brooklyn Bridge?
Steel idots.
What material do the use to build the London bridge?
The current London Bridge, built in 1973, is a pre-stressed concrete structure.
What bridges did Washington roebling build besides the brooklyn bridge?
Washington Roebling worked on the Cincinatti-Covington bridge with his father from 1865-1867. He also assisted his father on the Allegheny bridge project from 1858 to 1860
Where did George Washington build a fort that he had surrendered to the french?
Fort Necessity
