What Are The Four Types Of Drainage?
What Are The Four Types Of Drainage? Surface. Subsurface. Slope. Downspout/gutters. What are the types of drainage? Surface Drainage System. Surface drainage systems remove excess water from the land’s surface through channels or ditches. … Subsurface Drainage System. Subsurface drainage systems are implemented beneath the top layer of soil. … Slope Drainage System. … Downspouts