Quentin
QUOTE: Originally posted by GP40-2 The 4 track PRR main split eastbound just before the summit. 3 tracks went through the Gallizten Tunnels, and 1 track went through the Allegheny Tunnel. Grades and elevation varied only slightly between the tunnels. Shortly after exiting mountain on the east slope, both lines came back together to form a 4 track main down the Allegheny Front and around Horseshoe curve.
QUOTE: Originally posted by Modelcar ajmiller: In my above post I was referring to the line that came up around Mule Shoe Curve to attain the summit and go on west...and of course it went through the New Portage Tunnel.....but that line was in addition to the four tracks that came up around Horse Shoe...and I'm sure you are aware of that. Of course it joined one of those 4 tracks there at the tunnel and it's traffic then was on one of those 4 tracks to continue.
QUOTE: One comment: I believe the Allegheny Tunnel WAS in the past a double track tunnel and then was later converted to single track when as the other tunnel right beside it was still in use....and then when double stacks came along and needed to get through...NS redid the Allegheny to allow double stacks to fit through the bore...Again using double track....That was back in the 90's...if memory serves me correctly. Of course at the same time the tunnel right beside it was taken out of service...The one you said had icicles hanging in it....
QUOTE: Originally posted by germanese There are too many really to pick one. Stampede pass, Tennessee pass, Cajon they are all good. If I had to pick one though, it would be The Horseshoe curve which includes the Gallitzin tunnel nearby.
QUOTE: Originally posted by edbenton It was Conrail that modified ythe tunnels so they could run DS on that route.
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