Over the last several thousand years, bridges have served one altogether the foremost necessary roles among the development of our earliest civilizations, spreading of knowledge, native and worldwide trade, and additionally the increase of transportation. initially created out of simplest materials and designs, bridges presently evolved and enabled carrying of the wide deck and spanning of huge distances over rivers, gorges, the associate inaccessible piece of land, powerfully elevated surfaces, and pre-built city infrastructures. starting with thirteenth century B.C. Greek Bronze Age, stone arched bridges quickly unfold all around the world, eventually leading to the rise of the use of steel, iron and different materials in bridges which is able to span kilometers.
To be ready to serve varied roles, carry totally different types of weight, and span terrains of various sizes and complexities, bridges can powerfully vary in their look, carrying capability, kind of structural components, the presence of movable sections and construction materials.
To be ready to serve varied roles, carry totally different types of weight, and span terrains of various sizes and complexities, bridges can powerfully vary in their look, carrying capability, kind of structural components, the presence of movable sections and construction materials.