This manual provides general information, design criteria and procedures, static and dynamic analysis procedures, temperature studies, concrete testing requirements, foundation investigation requirements, and instrumentation and construction information for the design of concrete arch dams. The guidance provided in this manual is based on state of the art in this field as practiced at the time of publication. This manual will be updated as changes in design and analysis of arch dams are developed. The information on design and analysis presented in this manual is only applicable to arch dams whose horizontal and vertical sections are bounded by one or more circular arcs or a combination of straight lines and circular arcs.