underdrains - drainage - ditches - stability

	This shows some typical profiles for good Drainage and Stability. For full size picture click here
	Another approach For full size picture click here
	Lead off drain and culvert For full size picture click here
	Culvert outlet For full size picture click here
	Hip Drains For full size picture click here
	Table Drains For full size picture click here
	Spill off and rock drain For full size picture click here
Unified Classification System	View Here
Links page for manuals and information	View Here