What type of water transportation system did both the Rapidan Dam Canal of the Rappahannock Navigation and the Main Line of Public Works work to establish?
Main Line of Public Works: The Main Line of Public Works was a package of legislation supporting a vision passed in 1826 — a collection of various long proposed canal and road projects that became a canal system (1824 proposals and studies) and later added railroads (amendments in 1828) designed to cross the breadth of Pennsylvania (mainly, southern) with the visionary goal of providing the best commercial means of transportation between Philadelphia and Pittsburgh.
i don't know