My model railroad page now has a bit of information about the use of super-elevated track during the Civil War. Check it out at http://www.willegal.net/railroad/citypoint/cprailroad.htm

I recently made contact with a potentially great source of information on the City Point and Army Line Railroad. The information he says he has, would greatly expand my knowledge and I would definitely share it on my website. Whether this person can find the time to help me, will be determined, but if he does comes through, it has the potential to be quite awesome.