Purpose: The purpose of this manual is to provide information and guidance for the investigation and selection of concrete materials for civil works concrete structures. Elements discussed include design studies and reports, preparation of contract plans and specifications, construction preparation, and concrete construction quality verification. Emphasis is placed on the problems of concrete for hydraulic structures. Roller-compacted concrete, shotcrete, rigid pavement, architectural concrete, and concrete for repairs are not included. These subjects are discussed in EM 1110-2-2006, Roller-Compacted Concrete; EM 1110-2-2005, Standard Practice for Shotcrete; TM 5-822-7, Standard Practice for Concrete Pavements; EM 1110-1-2009, Architectural Concrete; and EM 1110-2-2002, Evaluation and Repair of Concrete Structures, respectively.