This updated third edition of the textbook on design of bridge structures continues to provide comprehensive coverage of both theory and design practice within a single capsule. It is intended for undergraduate and postgraduate students of civil engineering. It is also considered useful for practicing civil engineers and designers who need a ready reckoner on important design aspects on bridges. This third edition comes with three recent topics in bridge engineering. Chapters on limit state method design of concrete bridges, on flyovers and on smart structural health monitoring of the bridges have been appended. The most distinguishing features of this edition comprise: Design of concrete bridges based on both working stress and limit state methods Detailed design drawings of bridges Detailed overview of flyovers Exposition to smart structural health monitoring of bridges Computer programs in C on bridge design