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1 IRC:SP:73-2018 MANUAL OF SPECIFICATIONS ANd STANdARdS FOR TWO LANING OF HIGHWAYS WITH PAVEd SHOULdER(Second Revision) published by:INdIAN ROAdS CONGRESSKama Koti Marg, Sector-6, Puram, New Delhi-110 022 NOVEMbER, 2018 Price : `1500/- (Plus Packing & Postage)IRC:SP:73-2018 first published : August 2007 first Revision : June, 2015 Reprinted : February, 2016 Second Revision : November, 2018 Reprinted : August, 2019 (Incorporates Amendment published in Indian Highways September, 2019)(All Rights Reserved. No part of this publication shall be reproduced, translated or transmitted in any form or by any means without the permission of the Secretary General, Indian Roads Congress)Printed by India Offset Press, Delhi - 110 0641100 Copies IRC:SP:73-2018 CONTENTSS.

2 No. description Page No. PERSONNEL OF THE GENERAL SPECIFICATIONS ANd STANdARdS COMMITTEE (GSS) (i) INTROdUCTION 1 PREAMbLE 2 SECTION 1 : GENERAL 6 SECTION 2 : GEOMETRIC dESIGN ANd GENERAL FEATURES General 13 Design Speed 13 Right of Way 14 Lane Width of Carriage Way 14 Median 14 Shoulders 14 Roadway Width 15 Camber or Cross Fall 16 Geometric Design and Alignment 16 Lateral and Vertical Clearance at Underpasses 18 Lateral and Vertical Clearance at Overpasses 18 Service Roads 19 Grade Separated Structures 19 Footpath, Drain and Pedestrian Railing in Built-up Areas 20 Utility Corridor 20 Typical Cross-Sections 21 Capacity of Two-Lane Highway 21 SECTION 3 : INTERSECTIONS ANd GRAdE SEPARATORS Introduction 29 At-Grade Intersections 29 Grade Separated Intersections without Ramp 32 Interchanges 36 SECTION 4 : ROAd EMbANKMENT General 42 Embankment 42 Roadway in Cutting 43 Soil Investigations and Design Report 43 SECTION 5 : PAVEMENT dESIGN General 46 Type of Pavement 46 Method of Design - New Pavements 46 Design Requirements for New Pavement Sections 47 Design Traffic 48 Sub-Grade 48 IRC:SP:73-2018 Pavement Components and Materials 48 Performance Evaluation 48 Widening and Strengthening of Existing Pavement to 48 Two Lane Paved Shoulders 50 Earthen Shoulders 51 Construction, Workmanship and Quality of Works 51 Premature Distress 51 SECTION 6.

3 ROAdSIdE dRAINAGE General 52 Surface Drainage 52 Drainage where Embankment Height is more than 3 m 53 Catch Water Drains 53 Sub-Surface Drains 53 Internal Drainage of Pavement Structure 55 Drainage for Structures 55 Existing Drains, Canals and Minor Waterways 57 SECTION 7 : dESIGN OF STRUCTURES General 58 Design Loading and Stresses 58 Width of Structures 58 Structure Types 61 Hydrology 62 Sub-Soil Investigations 62 Culverts and Bridges using Pipes 62 Temporary Works 63 Foundations and Sub-Structures 64 Approach Slabs 64 Superstructures 64 Bearings 65 Expansion Joints 65 Wearing Coat 66 Reinforced Earth Retaining Structures 66 River Training and Protective Works 67 Safety Barriers 67 Rail-Road Bridges 67 Grade Separated Road Structures 68 Drainage 68 Structures in Marine Environment 69 Repairs and Strengthening 69 Design Report 70 Responsibility for Design and Structural Adequacy 70 IRC:SP:73-2018 SECTION 8 : MATERIALS General 72 SECTION 9.

4 TRAFFIC CONTROL dEVICES ANd ROAd SAFETY WORKS General 73 Road Signs 73 Road Markings 76 Road Delineators 77 Reflective Pavement Markers (Road Studs) 86 .. Deleted 87 Roadside and Median Safety Barriers 87 Pedestrian Facilities 92 Work Zone Traffic Management Plans (WTMPs) 103 SECTION 10 : TOLL PLAZAS General 113 Location of Toll Plaza 113 Land for Toll Plaza 113 Layout and Design of Toll Plaza 113 Electronic Toll Collection 114 Prevention of Overloading 118 Toll Collection System 118 Pavement 118 Traffic Signs 119 Road Markings 119 Lighting 119 Water Supply 120 Fire Fighting System 120 Toll Plaza Complex 120 Toll Audit 121 Report to be Submitted 121 Annexure-A 127 Annexure-b 129 SECTION 11 : LANdSCAPING ANd TREE PLANTATION General 159 Design Considerations in Various Locations 159 Landscape Treatment 160 Report to be Submitted 161 SECTION 12.

5 PROJECT FACILITIES General 162 Road Boundary Walls (RBW) 162 Kilometre and 200 m Stones 162 Street Lighting 162 Truck Lay-by 163 IRC:SP:73-2018 Bus Bays and Bus Shelters 164 .. Deleted 166 .. Deleted 166 .. Deleted 166 Rest Areas 166 Highway Patrol Unit(s) 168 Emergency Medical Services 168 Crane Services 168 Communication System 168 Advanced Traffic Management Systems (ATMS) 168 Operation and Maintenance Center 169 Annexure-C 170 Annexure-d 177 SECTION 13 : SPECIAL REQUIREMENTS FOR HILL ROAdS General 199 Set Back Distance at Horizontal Curves 199 Grade Compensation at Curves 199 Hairpin Bends 200 Climbing Lane 200 Rock Blasting 200 Cut Slopes 200 Tunnels 200 Drainage 200 Retaining Walls 200 Breast Wall 201 Aprons etc.

6 201 Disposal of Debris 201 Report to be Submitted 201 SECTION 14 : TUNNELS General 202 Geometrics 202 Geotechnical Investigations 204 Structural Design 204 Design of Drainage System 205 Waterproofing 205 Ventilation 205 Tunnel Illumination 206 Tunnel Furnishing 206 Signages and Carriageway Markings 206 Emergency Facilities 206 Safety During Construction 209 Appendix-1 213 Appendix-2 214 IRC:SP:73-2018iPERSONNEL OF THE GENERAL SPECIFICATIONS ANd STANdARdS COMMITTEE (GSS)(As on 24th June, 2017)1 Kumar, Manoj(Convenor)Director General (RD) & Special Secretary to the Govt of India, Ministry of Road Transport & Highways, New Delhi2 Singh, (Co-Convenor) Additional Director General, Ministry of Road Transport & Highways, New Delhi3 Verma, Dr. (Member Secretary) Chief Engineer SR&T(R), Ministry of Road Transport & Highways, New DelhiMembers4 Basu, KaushikChief Engineer, Ministry of Road Transport & Highways5 Bhardwaj, Principal Scientist, Central Road Research Institute, New Delhi6 Chacko, Dr.

7 , Shriram Institute of Industral Research, Delhi7 Eligar, Engineer, Ministry of Road Transport & Highways8 Gupta, (RD) & AS (Retd), Ministry of Road Transport & Highways, New Delhi9 Jain, Prof (Dr) , IIT Roorkee10 Jhamb, Director General(Retd.), Central Public Works Department, New Delhi 11 Joshi, (Retd.), Ministry of Road Transport & Highways, New Delhi12 Lal, BhureChairman, Environment Pollution (Prevention & Control) Authority, Delhi13 Mathur, Dr. AjayDirector General, The Energy & Resource Institute, New Delhi14 Narain, SunitaDirector General, Centre for Science & Environment, New Delhi15 Goel, General(Retd), Central Public Works Department, New Delhi16 Pandey, Engineer, Ministry of Road Transport & Highways, New Delhi17 Parrikar, NaikSuperintending Engineer, PWD Goa18 Pateriya, Dr. (Technical), National Rural Road Development Agency, New Delhi19 Puri, (RD) & SS (Retd), Ministry of Road Transport & Highways, New Delhi20 Rajoria, (Retd.)

8 , Delhi PWD, New Delhi21 Raju, (Retd.), R& B Deptt., Hyderabad22 Rajvanshi, Ms. Asha Head, EIA Wild Life Institute, Dehradun23 The Director (Reddy, )Engineering Staff College of Engineering, HyderabadIRC:SP:73-2018 ii24 The CEO & PD (Sahay,Vishvajit)National Automotive Testing and R&D Infrastructure Project, New Delhi25 Sarangi, DChief General Manager, National Highways Authority of India26 Sharma, D. Scientist, Central Road Research Institute, New Delhi27 Sharma, M. Engineer, Ministry of Road Transport & Highways, New Delhi28 Sharma, R. Director, M/s STP Ltd New Delhi29 Sharma, V. General Manager (LA), National Highways Authority of India, New Delhi30 Sinha, (RD) & SS (Retd.), Ministry of Road Transport & Highways, New Delhi31 Sinha, Engineer (Retd.), Central Public Works Department, New Delhi32 Tawade, (Technical), National Highways Authority of India, New Delhi33 The Director General, (Mathur, Vishnu)Society of Indian Automobile Manufacturers, New Delhi34 The Director (Urdhwareshe, Mrs.)

9 Rashmi)Automotive Research Association of India, Pune35 Vasantha, Dr. Engineer, PWD Hyderabad36 Verma, , Engineering Staff College of India, Hyderabad37 Verma, Maj , M/s Oriental Structures Engineers Pvt. Ltd., New Delhi38 Vyas, NehaSenior Environment Specialist, World Bank, New DelhiCorresponding Members1 Momin, Engineer, PWD Meghalaya2 Parsekar, U PPrincipal Chief Engineer, PWD Goa3 Sachdev, Engineer (Retd), Ministry of Road Transport & Highways, New Delhi4 Temjen, R. TemsuAddl. Chief Engineer, PWD Nagaland5 Vanlaltluanga, , PWD MizoramEx-Officio , IRC(Pradhan, ) Engineer-in-Chief cum Secretary to the Govt. of Odisha, General (RD) & Spl. Secretary to the Govt. of India(Kumar, Manoj) Ministry of Road Transport and Highways, New General(Nirmal, ) Indian Roads Congress, New Delhi IRC:SP:73-20181 MANUAL OF SPECIFICATIONS & STANdARdS FOR TWO LANING OF HIGHWAYS WITH PAVEd SHOULdERINTROdUCTIONThe Manual of Standard & Specifications for two laning of State Highways on BOT Basis was first published in August, 2007 .

10 The first revision of this document was approved by Council in its 204th Meeting held in Bhubaneswar on 19th January, 2015 and it was made applicable for 2 lane with or without paved shoulder on BOT/EPC Basis. However, since then based on the experience of EPC Projects and site specific problems, the Project Preparation, Contract Management, Quality Assurance and Public Private Partnership Committee (G-1) under the Convenorship of Shri Singh in its 1st meeting held on decided that IRC:SP:73-2015 should be reviewed on priority. A sub-group under Shri Sinha with other members as Shri Ashok Kumar, Shri Bhasin, Shri Pandey and Shri Nirmal was constituted. The sub group prepared different sections of the special publication in the Transport Bhawan, which were further discussed in different meetings of G-1 Committee between and On , the Committee after detailed discussion authorized the Convenor to finalize the document as per suggestions/comments of the members.