Maintaining the Ditch and Surface Cross Drains (#18556)

Posted by on 30. Nov, 2011 in Bridge and Drainage Maintenance, Forests and Forestry

Comprehensive instructions for correctly constructing and maintaining ditches, culverts and various surface cross drains.  Highlights surface cross drains such as rolling dips, earthen water bars and interceptor dips. 
(Part 5 of Forest Roads and the Environment Series, complete series also available – #18828). (2002) - VHS VIDEO  (16:00)