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IRC :SP: 13-2004 GUIDELINES FOR THE DESIGN OF SMALL BRIDGES AND CULVERTS INDIAN ROADS CONGRESS Digitized by the Internet Archive in 2014 https ://arch i ve . o rg/detai I s/govl awi rcy2004sp 1 3_0 IRC:SP:13-2004 GUIDELINES FOR THE DESIGN OF SMALL BRIDGES AND CULVERTS Published by INDIAN ROADS CONGRESS Jamnagar House, Shahjahan Road, New Delhi 110011 2004 Price Rs.400/- (Plus packing & postage) 2 First Published August, 1973 Reprinted April, 1978 Reprinted April, 1982 Reprinted March, 1986 Reprinted June, 1990 Reprinted January, 1994 Reprinted June, 1995 Reprinted January, 1998 Reprinted September, 2000 (Incorporates the amendments) Reprinted April, 2002 Reprinted December, 2003 First Revision June, 2004 Reprinted November, 2004 Reprinted December, 2005 Reprinted February, 2007 Reprinted February, 2008 (Incorporates the Errata) No. 1 dated 31.10.2007) Reprinted October, 2009 Reprinted July, 2011 Reprinted December, 20 1 (Rights ofPublication and Translation are reserved) at - Printed : India Offset Press, New Delhi 1 10064 (1000 copies) : 3 IRC:SP: 13-2004 PREFACE The Paper entitled "Guidelines for the Design of Small Bridges and Culverts" by Shri Goverdhan Lai who retired as Additional Director General (Roads), Government of India, was published as Paper No. 1 67 in Volume XVIII-Part 2 of the Journal of the Indian Roads Congress which was presented and discussed at its Annual Session held at Bhubaneshwar in 1954. One of the main objectives of the author in preparing this Paper was to help the Highway Engineers in the country to do the planning and design of small bridges and culverts for road projects correctly and expeditiously. While the Paper, in its original form, still has great value, IRC during 1970's felt that this Paper needed revision since its first publication in light of the feedback obtained from members of the profession and also to reflect the changes in revised IRC Codes of Practice for design of bridges. Shri Goverdhan Lai, the author ofthe original Paper graciously agreed for its revision and for bringing it out as a Special Publication of the Indian Roads Congress. Accordingly, Special Publication No. 1 "Guidelines for the Design of Small Bridges and Culverts" was published in 1973. and this was highly appreciated by the members of the profession. Since 1 973, the IRC Codes of Practice for design of bridges have undergone further major changes. Considering various changes and new codal provisions made since 1973, a Committee (B- 1 1) for revision of IRC:SP:13-1973 was constituted under the Chairmanship of Shri C.R. Alimchandani in 1994. The work of the Committee was continued by the reconstituted Committee of General Design Features Committee (B-2) from Jan., 2000 (Personnel given below) G. Sharan Convenor Sudip Kumar De Co-Convenor B.N. Singh Member-Secretary Members Dr. B.P. Bagish M.V.B. Rao C.S. Balramamurthy N.C. Saxena Sunil Dayal V.K. Sinha Suprio Ghosh Mahesh Tandon G.P. Joshi G.S. Taunk Anil Kumar P.S. Tyagi Vijay Kumar N. Venkataraman A.D. Narain V. Velayutham Sanjay Kumar Nirmal Corresponding Members S. Ahmed •C.V. Kand C.R. Alimchandani S.A. Reddi Ashok Basa IRC:SP: 13-2004 Ex-Officio Members President, IRC DG(RD) & SS (S.S. Rathore) (N.K. Sinha) Secretary, IRC (G. Sharan) The revised draft of SP: 1 3 was prepared by Shri C. V. Kand who was ably helped by S/Shri K.S. Jangde, S.M. Sabnis, A.S. Khaire & S.P. Badhe of the earlier committee. The revised draft was considered and discussed by the newly constituted General Design th Features (B-2) Committee in its meeting held on the 25 August, 2000. The draft was given a final shape by a Sub-Committee comprising of Dr. B.P. Bagish, S/Shri A.D. Narain, G.S. Taunk, Ashok Basa and S.K. Nirmal. The finalised draft of the above Sub-Committee was considered by the B-2 Committee rd th in its meeting held on 23 and 24 March, 2002 and the Committee approved the draft during its meeting held on 24 th August, 2002. The final draft received from the Convenor, B-2 Committee was considered and approved by the Bridges Specifications and Standards (BSS) Committee in its meeting th th held on the 7 December, 2002 and by the Executive Committee in its meeting held on 7 December, 2002. rd The Council during its meeting held on 3 January, 2003 approved the draft subject to modification as per suggestions given by the members and authorised the Convenor, BSS Committee to approve the document after getting the same modified by the Convenor of B-2 Committee. In April, 2003 the draft modified by the Convenor, B-2 Committee incorporating the comments of the members of the Council was sent to Convenor, B.S.S. Committee for approval. Since the Convenor, B.S.S. Committee was not in position, the Council during the Mid-term Council meeting held in Pondicherry in June, 2003 decided that the document may be got approved by President, IRC after incorporating the modifications suggested by the Ministry of Road Transport & Highways and agreed upon by Convenor, B-2 Committee. The draft modified on the above lines was put up to the then President, IRC, Shri R.R. Sheoran for approval. He suggested certain modifications and also held discussions with Shri G. Sharan, Convenor, B-2 Committee and Secretary, IRC. He desired that the document may be further reviewed. Detailed review was carried out by Secretary, IRC with the help of Shri R.H. Sarma, Technical Consultant, IRC. The modified draft was circulated to Shri Indu Prakash, Convenor, BSS Committee, Shri V.K. Sinha, Co-Convenor, BSS Committee, Shri G. Sharan, Convenor, B-2 Committee, Shri R.R. Sheoran, Past President, IRC, Shri S.S. Momin, President, IRC and Dr. B.P. Bagish. Based on their comments the document was approved by President, IRC and is published in its present form. (iv) IRC:SP: 13-2004 CONTENTS Page List of Plates (vii) Personnel ofthe Bridges Specifications & Standards Committee (ix) Introduction (xiii) Article 1 General Aspects 1 Article 2 Site Inspection 3 Article 3 Essential Design Data 5 Article 4 Empirical and Rational Formulae for Peak Run-offfrom Catchment 7 Article 5 Estimating Flood Discharge from the Conveyance 17 Factor and Slope of the Stream Article 6 Design Discharge 21 Article 7 Alluvial Streams Lacey's Equations 23 Article 8 Linear Waterway 25 Article 9 Normal Scour Depth of Streams 27 Article 10 Maximum Scour Depth 33 Article 11 Depth ofFoundations 35 Article 12 Span and Vertical Clearance 37 Article 13 Geometric Standards, Specifications and Quality Control 39 Article 14 Structural Details of Small Bridges and Culverts 47 Article 15 Elements ofthe Hydraulics ofFlow through Bridges 51 Article 16 Afflux 57 Article 17 Worked out Examples on Discharge Passed by 63 Existing Bridges from Flood Marks Article 18 Overtopping ofthe Banks 69 Article 19 Pipes and Box Culverts 71 IRC:SP: 13-2004 Article 20 Protection Work and Maintenance 79 Article 21 Raft Foundations 81 Article 22 CD. Works in Black Cotton Soils 83 Article 23 Box Cell Structures 85 Bibliography 87 APPENDICES APPENDIX-A Heaviest Rainfall in one hour (mm) 89 APPENDIX-B Filling Behind Abutments, Wing and Return Walls 105 (vi) IRC:SP: 13-2004 LIST OF PLATES Plate No. 1 . Chart for Time of Concentration 2. Run-off Chart for Small Catchments 3. Hydraulic Mean Depth R (METRES) 4. Typical Method of Determination of Weighted Mean Diameter of Particles (d m ) 5. Abutment and Wing Wall Sections for Culverts 6. Details of Segmental Masonry Arch Bridges without Footpaths- Effective Span 6m and 9m 7. RCC Solid Slab Superstructure (Right) Effective Span 3.0 m to 1 0.0 m (with and without footpaths)-General Notes 8. RCC Solid Slab Superstructure (Right) Effective Span 3.0 m to 1 0.0 m (with and without footpaths)-General Arrangement 9. RCC Solid Slab Superstructure (Right) Effective Span 3.0 m to 1 0.0 m (with and without footpath)-Depth of Slab and Quantities Person 1 0. RCC Solid Slab Super Structure (Skew) Right Effective Span 4.0m to 1 0.0m (with and without foothpaths)-General Notes 1 1 . R.C.C. Solid Slab Superstructure (Skew) Right Effective Span 4.0; 6.0; 8.0; 10.0 m (with and without footpaths)- General Arrangement 1 2. RCC Solid Slab Superstructure (Skew) Right Effective Span 4.0, 6.0, 8.0, 1 0.0 m (with and without footpaths)-Depth of Slab and Quantities per Span 13. Box Cell Structures-General Notes 1 4. Box Cell Structures-Index Sheet 1 5. Single Cell R.C.C. Box Structures 2m x 2m to 8m x 7m (without Earth Cusion)-General Arrangement 1 6. Single Cell R.C.C. Box Structures 2m x 2m to 8m x 7m 1 &2 (with Earth Cusion)-General Arrangement 1 7. Double Cell R.C.C. Box Structures 2m x 2m to 3m x 3m (without Earth Cushion)-General Arrangement (vii) IRC:SP: 13-2004 1 8. Double Cell R.C.C. Box Structures 2m x 2m to 3m x 3m (with Earth Cushion)-General Arrangement 1 9. Triple Cell R.C.C. Box Structures 2m x 2m to 3m x 3m (without Earth Cushion)-General Arrangement 20. Triple Cell R.C.C Box Structures 2m x 2m to 3m x 3m (with Earth Cushion)-General Arrangement 21 . Single Double and Triple Cell R.C.C. Box Structures (with and without Earth Cushion)-Quantities of Steel and Cement 22. Typical Details of Floor Protection Works for Box Cell Structures -General Arrangement 23.