Sorry Jim but my post wasn't too clear. Much of what was being posted here about the Valley RR dealt with the segment between Staunton and Lexington. I was just trying to emphasize that the bridge and other parts of the line that could be viewed from I-81 between Staunton to Lexington were not the focus of engineering notes of John's book.
Somewhere I have a small pile of relatively useless information about the Valley RR that I was gathering with the goal of one day writing a book or article. That idea died when John's book came out.
I do happen to also own Crooked & Weedy, which is about the Chesapeake & Western. While the C&W did pick up part of the Valley RR from the Baltimore & Ohio, the book's focus is more on its original line from Elkton through Harrisonburg to Stokesville.