While at the New river bridge you must take everyone down this historical road that goes UNDER the steel bridge.
The road is State Rd 82
Once your on the north side of the new river bridge, going FROM the visitors center parking lot, turn right and head north on HWY 19, and go to the very next road to your right. Turn onto this road and you will go just a little ways and then you will come upon a "Y" in the road. Stay to your left and go slow, bikes should be spaced apart for safety reasons. This is a one way road all so be careful. There are some challenges of pot holes but going slow (2nd gear) you can easily maneuver around them. As your on your way down the mountain, there is a pull off (on the left) so pictures can be take of the underside of the Steel bridge above. Across from the pull off is a place to walk up some wooden steps and photograph the rocks and cave. Just keep following this road and you will eventually cross over the river on an old steel bridge where you can stop and take more photos of the huge steel bridge above you. A sharp curve to the right (after the small steel bridge) and you are on your way UP the mountain which you will come out on the south side of the New River Bridge.
Enjoy!!!!!
Write up of the road I am speaking of:
The road through the Gorge is State Route 82, and other than going down Rt. 16 to Rt. 60, it was one of the only ways to get across the 900-foot deep canyon. The mostly one-way route that now exists makes for very easy driving.
It is hard for some to picture this route as a two-lane road that once had a lot of traffic. Passenger vehicles, coal and log trucks, and all kinds of tractor trailers once had to navigate this narrow mountain passage. One reason the trip took so long is that driving very quickly was treacherous. Around any curve you might have met a large vehicle that was taking up a lot of the road.
When you have time, take a drive through the Gorge on Rt. 82. Think about how that was once one of the only ways to cross the New River
http://www.nps.gov/neri/planyourvisit/fayette-station-road.htm