Why is site drainage important in earthwork?

Site drainage is crucial in earthwork primarily because it prevents water accumulation that can significantly weaken soil and foundations. Proper drainage management ensures that water does not pool on the surface or infiltrate the soil excessively, which could lead to soil saturation. Saturated soil loses its structural integrity, increasing the risk of erosion, landslides, or settling, which can ultimately compromise the stability of structures built on such ground.

By limiting water accumulation, effective drainage systems help maintain soil strength and support the loads of the structures above. This is essential for both construction and long-term durability and safety of the site infrastructure. Addressing drainage effectively can prevent costly repairs and reinforce the foundation's reliability, making it a critical aspect of earthwork processes.