This manual provides guidance on evaluating the condition of the concrete in a structure, relating the condition of the concrete to the underlying cause or causes of that condition, selecting an appropriate repair material and method for any deficiency found, and using the selected materials and methods to repair or rehabilitate the structure. Guidance is also included on maintenance of concrete and on preparation of concrete investigation reports for repair and rehabilitation projects. Considerations for certain specialized types of rehabilitation projects are also given.

This historical reference accounts for the first decade of the Great Lakes and Ohio River Division's place within the United States Army Corps of Engineers (U.S.A.C.E.) and its navigational projects that began in 1824. The Great Lakes and Ohio River Division, formed in 1997, manages two magnificent water resource systems--the Great Lakes and the Ohio River basin. The Great Lakes and Ohio River Division inherited command of seven district offices located in Buffalo, Chicago, Detroit, Huntington, Louisville, Nashville, and Pittsburgh. In this first decade of service, this division saw many critical changes. This resource traces those changes from the formative challenges of 1997 through the millennium matrix, global deployment, and regional management years into an urgent military construction program at the end of its first decade. It underscores numerous challenges and accomplishments during this timeframe from historical phases to current resolutions. Other products produced by the United States Army, US Army Corps of Engineers (U.S.A.C.E.) can be found here: http://https://bookstore.gpo.gov/agency/army-corps-engineers Engineering resources collection is here: https://bookstore.gpo.gov/catalog/engineering Water management resources collection is here: https://bookstore.gpo.gov/catalog/water-management Navigation Guides and Almanacs are available here: https://bookstore.gpo.gov/catalog/almanacs-navigation-guides