CONTENTS 1.INTRODUCTION 2. BASIC APPROACH 2.1 Introduction 2.2Parameters 2.3Policy for Decisions 2.4Technical Approach for Rehabilitation/Strengthening Solutions 3. INVENTORY OF TYPES OF BRIDGES AND DISTRESSES NORMALLY OBSERVED 3.1 Introduction 3.2 Various Types of Bridges 3.3 Normally Observed Distresses 4. TESTING & DIAGNOSIS (CONCRETE BRIDGES) 4.1 Introduction 4.2Investigation 4.3 Visual Inspection 4.4 Testing Methods 4.5Full Scale Load Testing of Bridges 5. REPAIRS & STRENGTHENING TECHNIQUES - GENERAL 5.1 Criteria for Selection 5.2 Repairs of Foundations 5.3 Repairs to Masonry Structures 5.4 Repairs to Concrete Structures 5.5 Repairs to Composite Structures 5.6 Repairs to Steel Structures 5.7 Repairs to Timber Structures 6. REPAIRS & STRENGTHENING TECHNIQUES FOR CONCRETE BRIDGES 6.1 Repair Work not Requiring Strengthening 6.2Strengthening of Concrete Structures 6.3Decision Matrix 7. REPAIRS TO EXPANSION JOINTS, BEARINGS, FOOTPATHS AND RAILINGS 7.1 Introduction 7.2 Expansion Joints 7.3Bearings 7.4Footpaths 7.5Railings or Parapets 8. HYDRAULIC ASPECTS 9. MONITORING 9.1 Necessity 9.2Methods of Monitoring 9.3 Instrumentation 9.4Training 10. RESEARCH & DEVELOPMENT 10.1 Introduction 10.2 Criteria of Practicality 10.3 Goals of Research 10.4 Areas of Research 11. MISCELLANEOUS ASPECTS REFERENCES APPENDICES Appendix -1 : Quantitative Measurement of Corrosion of Steel in Concrete Appendix - 2 : Selection of Techniques & Materials