The current London Bridge is a pre-stressed concrete box girder bridge.
The London bridge
London
The London bridge was built in Arizona in the year 1831. This is built over Lake Havasu.
Tower Bridge
London Bridge was built (to replace a bridge having been built by the Romans) in 1176. It was being built for 33 years. Until 1750, it was the only bridge which crossed the Thames. The modern London Bridge was built in 1973. (The original one was sold to an American businessman.)
The first London Bridge was built around 50AD by the Romans.
The original bridge was built by the Romans
it was built in London, England over the Thames river
The first London Bridge was built by the Romans around 50 AD
The 1973 London Bridge is a pre-stressed concrete structure.
1830
The current bridge was built in 1973