This document provides an in-depth look at the evolution of concrete pipe, citing notable changes in the design, manufacture, and installation methods that have been made to improve the product throughout the years. Readers will learn that, through proper and extensive engineering and testing, this “old” product has proven itself as rather innovative. Many of the innovations made throughout history are not easily recognized by the end user because they have resulted in very minimal changes to the product appearance, but instead have made impacts that compound over time and make the product better in every phase.