SPAN RESEARCH

Arch Bridge- Arch bridges have thick bases and a smaller center. They work by transferring the weight of the load to the ends of the arch that are thicker and stronger.

Cantilever Bridge- Are used by having horizontal beams that are only supported on one end. They are similar to a beam bridge but the difference is the force that comes through the bridge.

Truss Bridge- Truss bridges are one of the oldest types of modern bridges. They use connecting elements that help hold up the load that needs to be supported.