International Journal of Scientific Research and Engineering Development

A highway drainage system is one of the most important components of highway engineering because it protects roads from water-related damage and increases the life span of pavements (Federal Highway Administration [FHWA], 1992). Improper drainage leads to pavement deterioration, potholes, erosion, reduced driving safety, and increased maintenance costs (Ahmed, White, & Bourdeau, 1993). This research paper discusses the concept, objectives, types, components, design considerations, maintenance practices, and recent advancements in highway drainage systems. The study also highlights the importance of surface and subsurface drainage in maintaining pavement performance and traffic safety. Modern sustainable drainage practices and the use of geotextiles and permeable drainage layers are also discussed. The paper concludes that an efficient highway drainage system is essential for durable, safe, and economical transportation infrastructure.

Shruti Kadam, Anand Tapase, Shravani Jadhav, Shravani Bhoite,"Highway Drainage System: A Comprehensive Study on Design, Importance, and Maintenance" International Journal of Scientific Research and Engineering Development, V9(3): Page(2422-2428) May-June 2026. ISSN: 2581-7175. www.ijsred.com. Published by Scientific and Academic Research Publishing.