When did CR cut back on the use of the LVRR main north of A'town? I know it was put oos in 1984-ish and track removed. But in the late 70s and early 80s Lehighton interlocking was still in place, as were the 4 tracks of the LVRR. I can't see why as it was just redundant duplicate trackage. I can't figure out why CR didn't just abandon it immediately in '76. Both lines left A'town, split apart along the river, then came back together at Lehighton. Makes no sense. I spoke to a buddy who said they ran a passenger trip up the LV main from A'town in the early 80s and several of the grade xings were paved over and they just ran over them!
That passenger run was a Railtours-Inc deadhead equipment move with the 972 and train, taking everything back to Jim Thorpe from Reading.. That year, 1983, the RCT&HS and RTI ran excursions commemorating the 150th birthday of the Philadelphia and Reading Railroad.. The trip back to JT was run on the then out-of-service LV main. The crossing at Slatington had already been paved over, the Conrail pilot wasn't aware and the train with through the blacktop at something greater than 15 m.p.h. More like 55 m.p.h. from what I've been told. (Embellishments are possible).
Regarding why the LV main was abandoned, it made more sense to keep the line that fed traffic from the north directly into Allentown Yard. Also, there were more customers on the former CNJ side than on the LV side.
Micah