Types of Road Drainage systems & their features 

The road drainage system is used for the removal and disposal of water from the surface as well as subsurface water. It maintains the stability and durability of the road, by keeping it dry as possible. The longer water sits on a surface, the more susceptible it is to contamination. The installation of suitable surface and sub-surface drainage systems is an essential part of highway design and construction.

Modern drainage infrastructure increasingly relies on durable, corrosion-resistant materials to ensure long-term performance. Components such as HDPE manholes are becoming popular in road and stormwater systems because they’re lightweight, leak-proof, and resistant to chemical or soil corrosion. Compared to traditional concrete structures, HDPE options offer easier installation and longer service life, key advantages for sustainable road construction.

Sources of water ingress on roads;