I came across an interesting offering of this in eBay with a minimum bid of $49.95. It was written byArcher Butler Hulburt.
The 16 volumes were printed from 1902 to 1905 and covered items such as Indian roads, Braddock and Forbes roads, Boone's Wilderness Road, the National Road, Pioneer roads, canals and what I would especially consider of interest, a whole volume devoted to "The Future of Road-Making in America."
It would be interesting to see what they had to say back in 1905 and the Good Roads Movement.
Anyone know anything about this set?