Below is a photo of one of the old fashioned ice jams down at East Georgia before the new bridge was built. I am sure that most youngsters who grew up in Fairfax have had an opportunity to go down and view this site. The photo below is from the Cain/Southard Album, courtesy of Mike & Margie Cain:
(http://www.vtgrandpa.com/photos/albums/forum_photos/icejam_ghb.sized.jpg)
This link should (if I did it right) show you real time data for the river by the Georgia high bridge.
http://waterdata.usgs.gov/vt/nwis/uv?04292500 (http://waterdata.usgs.gov/vt/nwis/uv?04292500)