Open Channel Hydraulics, Second Edition provides extensive coverage of open channel design, with comprehensive discussions on fundamental equations and their application to open channel hydraulics. The book includes practical formulas to compute flow rates or discharge, depths and other relevant quantities in open channel hydraulics. In addition, it also explains how mutual interaction of interconnected channels can affect the channel design. With coverage of the theoretical background, practical guidance to the design of open channels and other hydraulic structures, advanced topics, the latest research in the field, and real-world applications, this new edition offers an unparalleled user-friendly study reference. Introduces and explains all the main topics on open channel flows using numerous worked examples to illustrate key points - Features extensive coverage of bridge hydraulics and scour - important topics civil engineers need to know as aging bridges are a major concern - Includes Malcherek's momentum approach where applicable Practical, accessible and updated guide to key aspects of open channel flow Open channels are natural or manmade conveyance structures that normally have an open top, and they include rivers, streams and estuaries. An important characteristic of open-channel flow is that it has a free surface at atmospheric pressure. The first edition introduced and explained all the main topics on open channel flows. Since then, there has been a great deal of progress in the area of hydraulic engineering, especially with scour, energy dissipation, bridge hydraulics, and connecting the role of hydraulics and hydrology to climate change. The 2nd edition of Open Channel Hydraulics continues to provide extensive coverage of open channel design, providing a solid understanding on the fundamental equations and their application to open channel hydraulics. This book includes practical formulas to compute flow rates or discharge, depths and other relevant quantities in open channel hydraulics. The book also explains how mutual interaction of interconnected channels can affect the channel design. With coverage of the theoretical background, practical guidance to the design of open channels and other hydraulic structures, advanced topics, the latest research in the field, and real-world applications, this new edition offers an unparalleled user-friendly study of this important subject for undergraduate and graduate civil engineering students and practicing engineers. Dr. A. Osman Akan, Emeritus Professor of Civil and Environmental Engineering at Old Dominion University received his BSCE from the Middle East Technical University and MS and PhD from the University of Illinois at Champaign-Urbana.  During his over 40 years of service in academia as a teacher, researcher, and faculty administrator, Dr. Akan published numerous journal articles, book chapters and textbooks.  He received awards from the ASCE for two of his journal articles.  He was a registered PE in the Commonwealth of Virginia until he retired in 2016.  Dr. Akan is an ASCE Fellow. Dr. Seshadri S. Iyer, is a Senior Water Resources Engineer at HDR, Inc. He graduated BS in Civil Engineering from Bangalore University, Bangalore, India (1982), received his Masters from Indian Institute of Technology, Madras in Hydraulic Engineering (1984), and Ph.D. from the Old Dominion University, Norfolk, Virginia (1996). Dr. Iyer has over 35 years of domestic and international professional and research experience in the field of water resources engineering. Dr. Iyer’s experience spans project management, hydrologic and hydraulic (H&H) analysis, scour analysis, transportation drainage systems, watershed modeling and preparation of master plans. Dr. Iyer is on the board of the Watershed Management Technical Committee and is involved in developing Manual of Practice for TMDL Analysis and Modeling. For over 10 years Dr. Iyer serves as an Adjunct Faculty at the Old Dominion University and teaches graduate and undergraduate courses in Urban Stormwater Hydrology, Hydraulic Engineering, Open Channel Hydraulics, & Groundwater Hydraulics.