A culvert is a structure that allows water to flow under a road, railway, or other obstruction. Typically made of materials like concrete, metal, or plastic, culverts help manage water drainage and prevent flooding. They are designed to accommodate streams, rivers, or stormwater, ensuring that water can pass through without causing damage to the surrounding infrastructure. Culverts come in various shapes and sizes, depending on their purpose and the volume of water they need to handle. Properly designed and maintained culverts are essential for protecting roads and bridges from erosion and water damage, contributing to safer travel and effective water management in the environment.