This manual provides an inventory of the dredging equipment and disposal techniques used in the United States and provides guidance for activities associated with new work and maintenance projects. This manual also presents engineering and design guidance for use on both new work and maintenance dredging projects. The guidance is primarily for projects that have been authorized and are in the preliminary design stages. However, much of the information is equally applicable to the preliminary engineering and design required during the authorization phase of dredging projects. This manual further provides guidance on the evaluation and selection of equipment and evaluation of disposal alternatives.