Tunkhannock Viaduct
Videos
Tunkhannock Creek Viaduct is a concrete deck arch bridge on the Nicholson Cutoff rail line segment of the Norfolk Southern Railway's Sunbury Line that spans Tunkhannock Creek in Nicholson, Pennsylvani
A Steamtown National Historic Site excursion train crosses Tunkhannock Viaduct.
Tunkhannock Viaduct under construction in 1914
Tunkhannock Viaduct from the air
Tunkhannock Viaduct, as seen from Route 11
Union Pacific 4014
Videos
Union Pacific 4014 is a preserved 4884-1 class 4-8-8-4 "Big Boy" type steam locomotive owned and operated by the Union Pacific as part of its heritage fleet. Built in November 1941 by the American Loc
Tunkhannock Viaduct
…largest concrete bridge, completing the Summit cut-off project for the Delaware, Lackawanna and Western Railroad. In June 2026, Union Pacific Big Boy No. 4014, the largest and heaviest steam locomotive still in operation, crossed the bridge on its coast-to-coast heritage excursion with Union Pacific and Norfolk…
Union Pacific No. 4014 departs Denver, Colorado, on July 19, 2025.
This photo of No. 4005's backhead shows what No. 4014 looked like before it was converted to burn oil.
No. 4014's replica builder's plate.
No. 4014 on display at the RailGiants Train Museum in April 2005.