scope:

This manual describes the engineering management issues that will be significant during planning, design, and construction of navigation projects without cofferdams. In some cases, these will differ considerably from traditional methods of construction. Chapter 2 describes the various types of prefabricated construction and some of their relative advantages. Chapter 3 identifies aspects of the planning and design process that may require special attention or different resources from more traditional construction projects. Chapter 4 describes specific engineering and construction issues that must be addressed during project development. This manual does not include specific criteria applicable to the design of project features.

Purpose. This manual provides guidance to help Districts in developing innovative plans to use precast concrete segments and other prefabricated elements for construction of navigation projects. The primary emphasis is on describing engineering activities necessary during the project development process that may differ from those needed for a project using traditional design and construction methods.

Applicability. This manual applies to all USACE commands having responsibility for civil works projects.