There are two types of drainage systems: surface drainage and subsurface drainage. Surface drainage systems carry water away from the surface of the earth, whereas subsurface drainage systems carry water away from the surface of the earth through pipes or trenches that are dug into the ground.

There are two types of drainage systems: surface and subsurface. A surface drainage system collects and transports rainwater runoff from the earth's surface. A subsurface drainage system collects and transports water that has already percolated through the soil.