Here's an excerpt from the decision covering the two different sections of track.
Wheeling & Lake Erie Railway Company (W&LE) a Class II rail carrier, has filed a verified notice of exemption under 49 C.F.R. § 1150.31 to operate approximately 14.6 miles of trackage in Harrison and Jefferson Counties, Ohio consisting of two segments: (a) between milepost 188.5 and milepost 189.1 near Unionvale and (b) between milepost 191.5 near Adena and milepost 205.54 near Warrenton. Both segments are part of a previously abandoned rail line known as the Valley Line.This lets the Wheeling operate from Pittsburg Junction to Kenwood where a big stone operation already occupies the mainline past Unionvale near Kenwood. The other section runs west from Warrenton at the Ohio River past Dillonvale, Adena and through the Adena Tunnel. The missing 2.4 miles between 189.1 and 191.5 is left out for obvious reasons for now as seen below.
|W&LE Toledo mainline washout at MP 191.5, just west of the Adena Tunnel. 11-29-2014 Chris Ellis photo|
For more reading here's a link to the STB's decision.