Temporary bridges are structures designed to provide a passage over obstacles like rivers or roads for a limited time. They are often used in construction projects, emergency situations, or during repairs of permanent bridges. These bridges can be quickly assembled and disassembled, making them ideal for short-term needs. Typically made from materials like steel or wood, temporary bridges can support various loads, depending on their design. They are essential for maintaining traffic flow and ensuring safety while permanent solutions are being developed. Examples include Bailey bridges and modular bridges, which are popular for their ease of installation.