Various Bridges Ubiquitous Editorial Photo

Bridge are ubiquitous everywhere and are used to make traffic routes such as road, railway, waterway, etc. or other facilities such as pipe, cable, etc. spanning natural barriers such as river, Strait, canyon, etc. or artificial barriers highway, railway lines. The purpose of a bridge is to allow people, vehicle, train or ship to cross obstacle. The bridge can be built on either side of the river valley or on the side of the Strait, or up on the ground, across the river or road below, allowing the following traffic to flow unimpeded.