![]() One of the most famous examples of a stone arch bridge is the Pont du Gard aqueduct built by the Romans near Nîmes, France. The Pont du Gard is an ancient arch bridge built of carefully cut and placed stones. Throughout history, different civilizations have used a variety of materials to make arch bridges strong, to great - and lasting - structural and aesthetic effect. However, there are ancient examples that cross very long distances by using multiple arches and contemporary ones that leverage modern engineering techniques and materials to extend their length. That’s why they must be built of materials that can withstand extraordinary forces.Īrch bridges typically span shorter distances because of the limited stress levels that arches are able to withstand. When arch bridges support their own weight and that of the vehicles, railroads, pedestrians, and other things that cross it, all parts of the arch are under compression. These supports, called abutments, carry the load and prevent the ends of the bridge from collapsing outward. ![]() Instead of pushing forces downward, the weight of arch bridges is pushed outward along the arch to the structural supports on either end. The locations and situations they’re right for.Īrch bridges are among the oldest crossings on earth.It’s because designers and engineers have found the ideal structural solution to span a body of water, valley, or roadway. ![]() ![]() 26, 2019 Bridge Masters Bridge DesignĮver wonder why certain bridges are so transformative and perfect for their locations? ![]()
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