various bridges ubiquitous

navigate by keyword : across allow allowing artificial barriers below bridge bridges built cable canyon cross everywhere facilities flow following ground highway lines natural obstacle people pipe purpose railway river road routes ship spanning strait traffic ubiquitous unimpeded valley vehicle waterway

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.