Bridge design is the process of creating structures that allow people and vehicles to cross obstacles like rivers, valleys, or roads. Engineers consider various factors, such as the materials used, the bridge's purpose, and the environment. Common types of bridges include beam bridges, arch bridges, and suspension bridges, each with unique features and advantages. A successful bridge design ensures safety, durability, and aesthetic appeal. Designers often use computer software to simulate how the bridge will perform under different conditions. Additionally, they must comply with local regulations and standards to ensure that the bridge can withstand natural forces like wind and earthquakes.