1. a tunnel or pipe that allows water to flow under a road, railroad, or embankment

Examples

• The culvert under the highway allows the stream to continue flowing.
• Heavy rains caused the culvert to overflow onto the road.
• Workers installed a new culvert to prevent flooding in the area.
• The old concrete culvert was replaced with a larger steel pipe.
• Debris blocked the culvert, causing water to back up.
• The engineer designed a culvert to handle the increased water flow.