Go back and research the history of our national road laws. It's pretty fascinating. The first Federal road was legislated as one of the conditions Ohio demanded before it would join the U.S. in 1803. Ohio was really the first U.S. state that had no historical links to the Atlantic Ocean (Vermont, Kentucky and Tennessee had previously been provinces or territories of original Thirteen Colonies with ports on the Atlantic), so this was a real turning point in our nation's history when it came to a Federal role in building and maintaining roads.
Thank you and I shall