It hasn't. The current London Bridge is made of pre-stressed concrete.
The current London Bridge is a pre-stressed concrete box girder bridge.
The Iron Bridge
iron
Heavy metal band Iron Maiden comes from UK.
duby the 3rd
from Brunel's Hungerford bridge in London which was demolised in 1860.
Iron molecules on the surface of the metal mix with oxygen molecules in the air creating Iron Oxide. This is better known as rust, the process continues until all the iron is consumed and converted into rust. The use of paint prevents the oxygen getting to the metal and causing this chemical process. if we didn't protect ths metal this way the bridge would soon become dangerously weak as the rust rotted the metal away.
The Iron Bridge in Shropshire is the world's first bridge constructed entirely from iron.
The Iron Bridge is located in Shropshire, England. The bridge goes over the Iron Bridge Gorge. It is a pedestrian bridge that was built in 1779. The bridge is made of cast iron.
No it was not designed nor was built by Eiffel. I took pictures of the bridge's base and I noticed that the bridge's metal support inscription. It was made in Thailand not Europe.I have spend many years investigating Eiffel's Iron Works around the world. This bridge is not Eiffel's work.
it is the iron bridge
Iron, supported on granite piers.