After looking at the photos, and noting the wires in one angle, I believe we're looking about here, just east of MP 84:
2400 Riverside Dr
https://maps.app.goo.gl/auezadXrG5Rn25pD9
Polish_20240315_181019529.jpg (526.37 KiB) Viewed 394 times
The #2 main runs from Easton to a point about 6 miles west of the crash site. MAS is 40 according to the 15 year old TT I have for that section, and there's a big curve near the junkyard, right before the derailment site.
Yes, both units in the drink came off the WB 19G. That road is really narrow through there, so closing it made plenty of sense for the first responders.
Avatar: NHV 669 at the south end of the "Pompy" in White River Jct., VT on 4/29/1993. Photo by Richard Roberg.
https://youtube.com/@NHVT_Productions