A pipe arch culvert is a round culvert that has been reshaped to allow a lower profile while maintaining flow characteristics. It is good for installations with shallow cover. Benefits also include easy installation and lightweight construction.
Pipe arches are typically constructed of rounded corrugated steel pipe and are especially useful for areas where headroom or vertical clearance is somewhat limited. Many of these pipe-arch culverts are located under highways but can also be used for railroads, storm drains, utility tunnels, and more.