This report presents estimates of the economic development impacts due to savings in delivered costs of commodities transported on the McClellan-Kerr Arkansas River Navigation System. The multiple-region variable input/output model is used to generate the estimates of project impacts. This economic model presents a national view of development impacts from this transportation system. From $50 million transport savings in 1978 the model estimates that 454 additional jobs were created in the 26 waterway counties in Oklahoma and Arkansas, 337 additional jobs were created in the rest of Oklahoma and Arkansas and 1,929 jobs were created in the rest of the U.S. These results make a potentially important contribution to the understanding of the way that transportation projects influence economic development. Far more jobs are created in those areas which receive the savings in delivered costs. This model has been used to generate estimates of the development impacts due to the flood control, hydropower, and recreation features of the McClellan-Kerr Arkansas River Navigation System. Keywords: Multiregional variable input-output model; Regional technical coefficients; Trade coefficients; Equilibrium price impact; Industrial impact; Economic impact; Inland waterways.

The report documents the port development response of the Arkansas-Oklahoma region to the development of the McClellan-Kerr Arkansas-Verdigris Waterway. Since the initiative for port development comes from state and local levels, the strategy and plans which evolve present significant clues about potential impacts from the region's perspective. The report surveys seven major port areas and thirteen individual ports. Data is presented on physical attributes of the ports, public and private investment and financing, and management arrangements. (Author).