construction limestone bridge

  • Pont du Gard - Construction of Ancient Roman Bridge

    The entire bridge structure is estimated to be weighing around 50,400 tons of limestone, mortar, and clamps. The volume of the bridge could fit inside 21,000 cubic meters, and some of the heaviest blocks of stone are estimated to be weighing around 6 tons.

  • Brooklyn Bridge - Wikipedia

    The Brooklyn Bridge started construction in 1869 and was completed fourteen years later in 1883. It was originally called the New York and Brooklyn Bridge and the East River Bridge, but it was later dubbed the Brooklyn Bridge. However, it was not named as such until the city government passed a law to that effect in 1915.