Definition of Drainage System

Drainage system is the natural or artificial removal of surface and sub-surface water from area.

 

It can also be defined as the method and process employed for the removal f water either from the soil-surface, by the side of buildings, the main purpose is to control erosion, storm water and prevent the occurrences of flooding.

Drainage system is a system by which the water level on or in the soil is controlled in other to avoid flooding. Coterell (1980).

Reference

Corterell, A. (1980): “The Encyclopaedia of Ancient Civilization”: England Rain Bird Publishers.