In some cases it can be at-grade (on the surface), especially when the drain is a dry well.Ĭulvert pipe is a type of drain pipe most often used to carry road runoff. The pipe is buried in the ground and connected to a storm drain or sewer main. Drive carefully over drain pipes! What is a drain pipe?Ī drain pipe is a piping system designed to drain rainwater and other water from roofs, foundations, basements or any place where it may accumulate.Can you drive over buried corrugated pipe?.