7. lvrm ch7 ukraine surf subdrainage-1 hr-
Post on 22-Jan-2018
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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
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