Water resources engineering is a subfield of civil engineering that is involved in the study and management of the equipment, facilities and techniques that are used to manage and preserve water. The budgetary concerns, government regulations and other factors are also handled within this field while designing and constructing such equipment and systems. Water resources engineering seeks to address the complicated problems associated with groundwater, hydrology, river flow and flood plain management, sediment transport, pipe flow, hydraulic structures, water distribution, climate change, environmental studies, etc. It also plays an important role in ensuring the safety of drinking water for consumption by humans, plants and animals. This book provides significant information related to water management and engineering which will help the reader develop a good understanding of the basic concepts of modern water resources engineering. It is a complete source of knowledge on the present status of this important field.