This book is a collection of highly refined articles on historical water projects and traditional water technologies of international interest in the Asian region, addressing information on past water projects (mostly before the 20th century) in the Asian regions that are technically and culturally of interest and educationally valuable. This book explores historical water projects in these regions, presenting technologies used at the time, including calculation and forecasting methods, measurement, material, labor, methodologies, and even water culture. It is expected that the old Asian wisdom of "reviewing the old and learning the new" would be realized to a certain extent in modern planning and practice of water projects. This book will enable the reader to understand historical water projects and technologies in the Asian region. It can be used as a one-stop resource to source notable Asian water projects and their relevance to modern-day technology. In this regard, this book is expected to be of interest to a variety of audiences, including the corresponding Asian regions and other international audiences interested in Asian water history from an engineering perspective.