PWTB 200-1-117 Mitigation of Environmental Impacts from Unsurfaced Roads  


Environmental impacts of roadway surface degradation, roadside gully development, deposition of sediments in culverts and ditches, and roadway flooding due to reduced ditch capacity are common problems encountered by the Army land manager. This Public Works Technical Bulletin (PWTB) provides guidance for environmentally sensitive road management, less sediment pollution, and lower costs at Army installations. Additionally, it seeks to minimize nonpoint source (NPS) pollution resulting from erosion and sediment discharge from unsurfaced dirt and gravel roads.