#681 - 2¢ Ohio River Canals: Plate Block

The Ohio River canalization project, a project started in 1875 to tame the turbulent Ohio, Monongahela and Allegheny Rivers between Cairo, Illinois, and Pittsburgh and allow larger ships to navigate the 967-mile waterway, was completed in 1929. The project's slogan, "Nine feet, Pittsburgh to Cairo", underscores the immensity of the undertaking. Scott 681 2¢ Ohio River Canals