US ‘Big Boy’ overhaul started by Union Pacific

Following the completion of the overhaul of Union Pacific 4-8-4 Northern No. 844, the railroad is now starting work on the restoration of four-cylinder articulated 4-8-8-4 ‘Big Boy’ No. 4014.

No. 4014 in the Union Pacific steam shop in Cheyenne, Wyoming, in August, after the locomotive and tender had been separated. UP
No. 4014 in the Union Pacific steam shop in Cheyenne, Wyoming, in August, after the locomotive and tender had been separated. UP

In late 2012, Union Pacific announced that it was interested in obtaining a ‘Big Boy’ and restoring it to operating condition, and on July 23 the following year, revealed that it had reacquired No. 4014 from the Southern California chapter of the Railway & Locomotive Historical Society in Pomona for that purpose.

It had been donated to that society in December 1961 after
having been retired from service on July 21, 1959.

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