Manual of Specifications and Standards for Four Laning of Highways
View at irc.nic.inWhat this code covers
Design, construction, operation, and maintenance of four-lane highways and expressways. Geometric design standards, pavement design, drainage, safety features, and environmental considerations.
What this means on site
Mandatory for expressway and four-laning projects. References IRC:SP:112 for quality assurance class definitions. Requires detailed QAM submission before any work commences.
Other project delivery codes
Manual for Quality Control in Road and Bridge Works
Merged three prior quality standards (IRC:SP:11, IRC:SP:57, IRC:SP:47). Defines Quality Assurance Manual (QAM), Quality Assurance Plan (QAP), testing procedures, calibration, acceptance criteria, and non-conformance protocols.
Manual of Specifications and Standards for Two-Laning of Highways with Paved Shoulders
Geometric design, pavement specifications for GSB, GWB, DBM, BM, and AC layers per IRC:37. Paved shoulder construction, quality control procedures, and material testing requirements.
Rural Roads Manual
Planning, geometric design, construction materials, drainage, and maintenance for rural roads. Aligns with PMGSY (Pradhan Mantri Gram Sadak Yojana) requirements. 12 chapters covering rural road development end-to-end.
Guidelines on Road Drainage
Surface and subsurface water management. Transverse and longitudinal drainage, shoulder drainage, pavement internal drainage, subgrade drainage, cross-drainage, and hydrological study requirements.
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