A beam bridge is a simple type of bridge that uses horizontal beams to support the weight of the structure and any traffic on it. These beams are typically made of materials like steel or concrete and are supported at each end by piers. The design allows for easy construction and is often used for short spans, making it a popular choice for crossing small rivers or roads. The strength of a beam bridge comes from its ability to distribute weight evenly across the beams. When a load is applied, the beams bend slightly, but they are designed to handle this stress. This straightforward design makes beam bridges both effective and economical for many transportation needs.