Bridge Structures and The Use of Geometry in Their Design What is a bridge? A bridge is a structure providing continuous passage over a body of water, roadway, or valley. Every bridge looks different from the another. Their bridge structure is different. There are nine types of main bridges. Bridge engineers use a lot of geometry to help them design the different bridges. Without geometry, the bridges would not be safe. Bridges have been around …showed first 75 words of 487 total…

…showed last 75 words of 487 total…This span was exceeded by the Bayonne Bridge from Bayonne, New Jersey, to Staten Island, New York, with a span of 1652 feet and a total length of 8100 feet. Soon after the turn of the 20th century, the development of reinforced concrete brought about great progress in concrete-arch bridge construction. Multiple concrete-arch construction has been used for overpasses, particularly in the U.S. The Columbia, Pennsylvania, highway overpass is 6856 feet long, with twenty-eight 185 feet concrete arches.