This dataset is based on the U.S. Department of Transportation's National Bridge Inventory (NBI).  Tunnels in the United States According to the HSIP Tiger Team Report, a tunnel...

The Rail Network is a comprehensive database of North America's railway system at 1:24,000 to 1:100,000 scale as of April 15, 2019. The data set covers all 50 States plus the...

The NBI is a collection of information (database) describing the more than 600,000 of the Nation's bridges located on public roads, including Interstate Highways, U.S. highways,...