Forest Service Road Maintenance Series: Maintaining the Ditch and Surface Cross Drains 

Forest Service Road Maintenance Series: Maintaining the Ditch and Surface Cross Drains - USDA Forest Service 2002 - Video VH-416E - Well-maintained ditches and surface cross drains are crucial systems for protecting the road and the environment. Video provides instructions for correctly constructing and maintaining ditches, culverts and surface cross drains, including how to heel and pull ditches and how to maintain rolling drain dips, interceptor dips, earthen water bars, and open-top drainage devices.