Speaking of openstreetmap Russ, what the heck happened to all of the abandoned right-of-ways that were so conveniently labeled on the map. It appears that they've all been removed, only active railroads remain labeled.
Beebee Bridge Rd. was at one time called Quality Hill Rd. According to Taibi's incredible Oneida Railway Company book, the West Shore built an embankment at, or around Quality Hill Rd. which prevented the Burt Line from building any further to the west (The book states that both the West Shore and Burt Line surveyed, and in some places built, side by side with each other westward from Albany). According to the author, the case went to court, neither party was found responsible, and after the death of general Burt, the West Shore continued to build west to Buffalo. I guess the rest is history. I agree that the Beebee Line is indeed probably the Burt Line. Perhaps this area marks the very end of the Burt Line, given that the embankment built by the West Shore which would ultimately hinder any further construction to the west, was located around the general vicinity of what is now BeeBee Bridge Rd.