natural engineering - soil bioengineering. example of protection of a dirt road from high water and from water erosion

bank bioengineering breakwater consolidate consolidation containment dirt ecology engineering environment environmental erosion footpath forest forestry ground groyne hydrogeological instability material natural nature path pebbles plant prevention protection reinforced reinforcing road shore side soil stabilization stiffen stone structure system terrain timber track trail trees trunks unpaved vegetable walking water waves wood