Scott K wrote:The engineering report linked to from this thread a while back, was, I think, where I read that the bridge was built for double track. I've never seen that anywhere else though. I did wonder if the deck would be wide enough for a second track, if they'd left off the railings and walkway gratings. Or maybe it did refer to a gauntlet track that was never installed.
Scott K.
I recently read about the Erie-Lackawanna railroad merger back around 1960, and their choice to use the Lackawanna mainline in western NY, at least partly because of the bottleneck posed by this bridge. Perhaps that was because of a lack of double track, or more likely because of speed restrictions over the bridge.
As for the gauging, yes, it seems Erie changed gauge between 1876 and 1880. I'd heard that Old Shakey was built in the mid 1880's, over a period of only 2 months. Depending on which build year is correct, it might've originally been 6'0" gauge, but dual-gaged, since Lehigh Valley had trackage rights at that time, and had laid a 3rd rail down. Erie it seems used both gauges for a time while transitioning, and a few years after Erie became standard, the LVRR built their own mainline.