Gotta Do What Ya Gotta Do. A derailment in Pittsburgh, Pennsylvania in prior days caused Norfolk Southern Corp Train 20W (Ashland Avenue Yard - Chicago, IL [BNSF]-Croxton, NJ, NS 9912, Dash 9 leading) to become the first "stack" train to travel over Moodna Viaduct in Cornwall, New York in 12 years on Wednesday, August 8, 2018. The train was routed from Binghamton, NY to Suffern, NY over the "Souther Tier Line" which is owned by NS but leased to other entities, and over NJ Transit to Croxton Yard in Jersey City, NJ via the Bergen County Line utilizing trackage rights. Unfortunately, that night an NYS&W train derailed in Deposit, NY, which caused the route to be blocked and no further detours due to this incident were operated. In April of 2019, a derailment at Wyomissing Junction, PA caused one train to be detoured, the only other stack train to travel this route since.