Drainage Function
The function of drainage is to manage and control excessive water or fluid in an area. Some of the main functions of drainage include:
1. Avoid Floods: The drainage system is designed to drain rainwater or excessive water from an area thereby preventing flooding.
2. Prevents Waterlogging: Drainage helps reduce or avoid water pooling on the ground surface, which can be detrimental to plants, infrastructure and property.
3. Controls Soil Erosion: Drainage helps prevent soil erosion by regulating the flow of water and preventing it from damaging the soil layers.
4. Maintain soil water balance: A good drainage system can help maintain soil water balance, preventing the soil from becoming too wet or too dry.
5. Increases Agricultural Productivity: Agricultural drainage helps create optimal soil conditions for plant growth by regulating groundwater levels.
6. Prevents Rotting of Building Structures: By avoiding the accumulation of water around building foundations or other infrastructure, drainage helps prevent rotting or damage to these structures.
7. Protects Water Quality: Drainage can help reduce the risk of water pollution by directing contaminated water from residential or industrial areas to water treatment systems.
8. Managing Rainwater in Urban Areas: Urban drainage helps manage rainwater that can flow into waterways and sewer systems, preventing water from pooling on roads and urban areas.
9. Reduces the risk of landslides: Drainage can help reduce the risk of landslides by controlling water that seeps into the ground.