Abstract This paper talks about the three most commonly constructed types of bridges in use today. The paper provides historical information about the bridges types, looks at their cost and the availability of materials for each of the bridges, as well as the complexity of engineering of each bridge. It goes on to explain how all of these factors, including a bridge's length capabilities and its artistic and aesthetic qualities, all go into the decisions that an engineer, designer, or contractor must consider when choosing the appropriate bridge for each necessary location and use.
From the Paper "Bridges are an integral but often overlooked part of today's commuting society. Most drivers feel completely secure and grounded when on any well-designed bridge, even though they may in fact be hundreds of feet in the air above a large gap or body of water. Bridges are not only functional for travel, but may be the key to growth and survival of many areas that would otherwise remain in isolation. Bridges also have a way of becoming important historical and artistic landmarks, and many bridges receive engineering and even artistic awards. Many cities like San Francisco, for example, are as recognizable by the their bridges as by any other city landmark. There are many different kinds of bridges used today. Three of the more common and interesting types of bridge in common usage today is the suspension bridge, the cable stayed bridge, and the reinforced concrete bridge."
