Recently, I was clicking through some pics on the nerail archive and came upon a picture of a GRS train (using Conrail power noless) located in the whereabouts of the Dover Arch http://photos.nerail.org/showpic/?20030 ... 523080.jpg. What superised me was that in the photo, dated 1992, that there was still a second, albeit unused, track in this location. I know that by the late 1970's most of the line was primarily single track, so I was superised to see this track in place some twenty or so years later. I was just wondering if anyone could provide any information/details into this second track; passing track, second mainline, siding, etc.
The track you mention was known as the "Arch siding". It ran from just west of
the "Arch" west toward Madbury a mile or so. Gravel was hauled from a
pit in Madbury off Rt. 155 for construction of I-95 in Saugus, which project was
never completed. The siding was used for the gravel train to run around to set
up for its run to/from Boston. The pit is still there, but it houses an automobile
recylcing company now and the track into the pit across Rt. 155, opposite the
private crossing is long gone. There is some mention of the pit operation in a
number of publications about the B&M. It is noted in a feature by Brian L.Jennison
in the "Boston and Maine, City and Shore" by Robert Willoughby Jones and I believe
there was at least one feature on the pit in a B&MRR Historical Society "Bulletin".
Perhaps other posters can give additional details. Usually, the power on the
gravel train was RS-3s, GP-7s or F units, as the GP9 fleet was the primary freight
power on the through east-west freights in those days.