Bridge structure that spans horizontally between supports whose function is to carry vertical loads. Standard overpass bridges or unique design bridges over rivers chasms or estuaries.

How Are Bridges Built How It Works

Bridges are built over water by different methods depending on the level of water and quality of soil.

How they build bridges. In low depth water foundation of bridge are laid by filling the particular location for a temporarily period over which piers a type of pillar can be built. Generally speaking bridges can be divided into two categories. They were brought to the attention of the general public in the 1990s by the novel movie and play the bridges of madison county.

Before pre historic people began to build the crudest shelter for themselves they bridged streams. Although building bridges is much easier in modern times bridge engineering involves precise physics vast resources and thorough planning prior to and during construction. Trees that have fallen across the stream from bank to bank acted as bridges.

Seven of the ten longest bridges in the world are located in china with most of these being rail bridges. The wandering tribe that first deliberately made a tree fall across a stream were the first bridge builders. Bridges built over water are marvels of engineering no matter how shallow or deep the water may be.

But how exactly are these bridges built particularly ove. Learn more about the history and design of bridges in this article. These bridges are often even longer and stronger as they have to ferry water or huge freight and passenger trains or ferries over vast distances.

Before bridges are constructed planners must test the site for elements like the soil strength depth and layout of the land. First method is used for bridges which are build in low depth water. In 1927 welding pioneer stefan bryła designed the first welded road bridge in the world the maurzyce bridge which was later built across the river słudwia at maurzyce near łowicz poland in 1929.

As technology and engineering improves even more expansive bridges could be in the pipeline.