A bridge is a structure built to span physical obstacles such as rivers, valleys, or roads, providing a way for people or vehicles to cross over. Bridges are typically made of materials such as wood, steel, concrete, or stone, and are designed to support the weight of the things crossing over them. Bridges can vary in size and shape, from simple footbridges to large highway overpasses. They play a vital role in transportation infrastructure, connecting communities and facilitating the movement of goods and people.
