Public Spending on Transportation and Water Infrastructure, 1956 to 201

"Public spending—spending by federal, state, and local governments—on transportation and water infrastructure totaled $416 billion in 2014. Most of that spending came from state and local governments: They provided $320 billion, and the federal government accounted for $96 billion. This report provides information on spending for six types of transportation and water infrastructure: Highways, Mass transit and rail, Aviation, Water transportation, Water resources, and Water utilities..."
Transportation spending