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IRC Codes›Specialized Roads
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Specialized Roads

Hill roads, rural roads, airfields, tunnels, expressways, toll plazas.

20 codes in this category
IRC 3
Dimensions and Weights of Road Design Vehicles (Fifth Revision)
IRC 3 defines the dimensions, weights, and envelope of road design vehicles used across every Indian traffic and road engineering decision. The 2021 revision (5…
📅 2021CurrentEssential
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IRC SP 20
Rural Roads Manual
IRC SP:20 is the comprehensive manual for rural roads — the bible for PMGSY projects. Covers everything from planning to maintenance for roads with traffic <450…
📅 2002CurrentEssential📄 PDF
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IRC SP 27
Guidelines for the Design of Flexible Pavements for Airfield Runways
This IRC code outlines the methodology for designing flexible pavements for airfield runways, focusing on the unique demands of aircraft operations. It emphasiz…
📅 2009CurrentFrequently Used
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IRC 32
Standards for Vertical and Horizontal Clearances of Overhead Electric Power and Telecommunication Lines as Related to Roads
IRC 32:1969 is the Indian standard for clearance between roads and overhead electric power / telecom lines. It addresses a perennial and often-overlooked infras…
📅 1969CurrentFrequently Used
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IRC SP 48
Hill Road Manual
The Hill Road Manual is an essential document for engineers involved in highway projects in mountainous regions of India. It details specific design considerati…
📅 1998CurrentFrequently Used📄 PDF
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IRC 52
Recommendations about the Alignment Survey and Geometric Design of Hill Roads
IRC 52:2019 is the comprehensive guide for alignment survey and geometric design of hill roads — complementing IRC 77 (specifications) with detailed methodology…
📅 2019CurrentEssential
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IRC SP 63
Guidelines for Design of Toll Plazas
This IRC code is essential for highway engineers involved in the design and operation of toll plazas. It details the principles and practices for determining to…
📅 2018CurrentFrequently Used📄 PDF
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IRC 64
Guidelines for Capacity of Roads in Rural Areas
IRC 103:2012 focuses on the fundamental principles of rural road capacity analysis. It defines capacity in terms of the maximum volume of traffic that a road ca…
📅 2017CurrentFrequently Used
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IRC 66
Recommended Practice for Sight Distance on Rural Highways
IRC 66:1976 is the foundational Indian code for sight distance — the engineering concept that determines whether a driver has enough visibility to safely stop o…
📅 1976CurrentEssential
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IRC 71
Recommended Practice for Road Signs on National Highways and Other Roads
IRC 71:1977 is the foundational Indian recommended practice for road signs on highways and other roads. It defines sign classification (Mandatory circular red-w…
📅 1977CurrentEssential
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IRC SP 73
Manual of Specifications and Standards for Two-Laning of Highways with Paved Shoulders
This IRC manual is a vital resource for engineers undertaking the two-laning of existing highways, with a specific emphasis on the provision of paved shoulders.…
📅 2015CurrentFrequently Used📄 PDF
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IRC 77
Standard Specifications and Code of Practice for Hill Roads
IRC 77:1979 is the foundational code of practice for hill road design, construction, and maintenance in India — applicable to the vast network of mountain roads…
📅 1979CurrentEssential
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IRC 80
Type Designs for Pick-up Bus Stops on Non-Urban Highways
IRC 80:1981 provides type designs for pick-up bus stops on non-urban highways — a ubiquitous but often neglected element of Indian highway infrastructure. The c…
📅 1981CurrentSpecialized
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IRC SP 84
Manual of Specifications and Standards for Expressways
IRC SP:84 is the master specification for Indian expressways (Mumbai-Pune, Yamuna, Bundelkhand etc.). Design speed 120 km/h, 6-8 lanes, full access control, gra…
📅 2019CurrentFrequently Used📄 PDF
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IRC SP 87
Manual of Specifications and Standards for Four Laning of Highways
The Manual of Specifications and Standards for Four Laning of Highways serves as a definitive guide for engineers involved in the planning, design, and executio…
📅 2013CurrentFrequently Used📄 PDF
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IRC SP 91
Guidelines for Road Tunnels
IRC:SP:106-2015 offers a detailed framework for road tunnel projects in India, encompassing all phases from initial conception to long-term upkeep. It emphasize…
📅 2019CurrentFrequently Used
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IRC 92
Guidelines for the Design of Interchanges in Urban Areas
IRC 92:2017 provides comprehensive design guidance for interchanges in Indian urban areas — grade-separated junctions between arterials, ring roads, expressways…
📅 2017CurrentEssential
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IRC 102
Traffic Studies for Planning Bypasses Around Towns
IRC 102:1988 provides methodology for planning bypass roads around congested towns — a common NH/SH intervention in India where trunk routes pass through urban …
📅 1988CurrentEssential
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IRC 103
Guidelines for Pedestrian Facilities
IRC 103:2012 is the definitive Indian guideline for pedestrian facilities — footpaths, crossings, street furniture, and accessibility provisions. It marks a shi…
📅 2012CurrentFrequently Used
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IRC 104
Guidelines for Environmental Impact Assessment of Highway Projects
IRC 104:1988 provides the methodology for Environmental Impact Assessment (EIA) and Environmental Management Plan (EMP) preparation for highway and road infrast…
📅 1988CurrentEssential
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