Oak Ridge National Laboratories, U.S. Bureau of Census, National Oceanographic and Atmospheric Administration, U.S. Geological Survey, Vanderbilt Engineering Center for Transportation Operations and Research, Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS), U.S. Army Corps of Engineers, and Vanderbilt Engineering Center for Transportation Operations and Research Vanderbilt University. The National Waterway Network is a comprehensive network database of the nation's navigable waterways. The data set covers the 48 contiguous states... Research and Innovative Technology Administration's Bureau of Transportation Statistics.