It is cheap, it is strong, it is reliable, it is versatile and it is simple and easy to use. In short, there is the perfect building material.
concrete is a very hard material and it is a long lasting material. it can hold on to any weight
No. London Bridge is a box girder concrete bridge and has never been a cantilever bridge. You may be thinking about Tower Btidge - which people sometimes confuse with London Bridge. Tower Bridge is a combined suspension and bascule bridge.
The present London Bridge is a pre-stressed concrete box girder bridge.
No, its a pre-stressed concrete box bridge.
There was virtually no wire used in the construction of Tower Bridge. Its main components are 70,000 tons of concrete, 11,000 tons of steel and it is clad in Cornish granite and Portland stone.
London Bridge is a very ordinary pre-stressed concrete bridge. You are probably thinking about Tower Bridge which is completely different.
The current London Bridge is made of pre-stressed concrete.
It is a pre-stressed concrete box girder bridge.
The present bridge is a pre-stressed concrete box girder bridge.
Lions Gate Bridge is made of steel and concrete.
The Skye Bridge is constructed of concrete and steel.
Reinforced concrete.
Concrete and steele