SURFACE DRAINAGESURFACE DRAINAGENatural Channel CrossingsNatural Channel Crossings

CulvertsCulvertsLow-Water CrossingsLow-Water CrossingsBridgesBridges

Surface DrainageSurface DrainageSub-Surface DrainageSub-Surface DrainageMeadow CrossingsMeadow Crossings

Photo: USDA Forest Service

Photo: Gordon Keller

Outlets/Inlets

USFS

Leadouts- Leadoff Ditch

USFS

Ditches

Photo: Gordon R Keller

USFS

Switchbacks

Steep Grades

Over-Side Drains

Meadow Crossings

Springs/Wet Areas

Corduroy Road

Underdrains

FilterBlanket

DRAINAGE

DRAINAGE

DRAINAGE

Pay Attention to Drainage Detail