IRC stands for the Indian Roads Congress, which is a professional organization in India that sets standards and guidelines for various aspects of road construction, including the design, construction, and maintenance of roads and highways.


The IRC codes are a set of guidelines and specifications issued by the Indian Roads Congress to ensure quality and safety in the construction of roads and highways. These codes cover a wide range of topics, including materials used in road construction, design criteria, pavement design, road drainage, traffic control, and road safety.


Some of the key IRC codes related to road construction in India include:


IRC 6: Standard Specifications and Code of Practice for Road Bridges, Section I - General Features of Design (Seventh Revision)

IRC 58: Guidelines for the Design of At-Grade Intersections in Rural and Urban Areas

IRC 67: Guidelines for the Design of Flexible Pavements

IRC 78: Specifications for Road and Bridge Work (Fourth Revision)

IRC 103: Guidelines for Pedestrian Facilities

These codes provide guidance to engineers and contractors involved in road construction projects to ensure that the roads and highways are built to high standards of safety, durability, and quality.