Union Pacific 4023 is a 4000 class 4-8-8-4 "Big Boy" type steam locomotive, preserved at Kenefick Park in South Omaha, Nebraska.

Union Pacific's "Big-Boy" Steam Locomotive, UP 4023, is being readied for a move across town to a new display at the Botanical Gardens near I-80 in Omaha Nebraska. Photo Date: 2/25/2005 …

During the end of their careers both Challenger 3985 and Big Boy 4023 were rebuilt and placed in the Cheyenne UP roundhouse. However, 4023 was later placed on display in Omaha and the …

Union Pacific No. 4023, or UP 4023, is a four-cylinder articulated 4-8-8-4 locomotives Big Boy-type steam locomotive owned by the Union Pacific Railroad (UP). It was built in November …

Union Pacific Railroad contracted Scribner & Sons to move the UP4023 and the UP6900, a 4-8-8-4 "Big-Boy" Steam locomotive, and the EMD DD40X diesel locomotive from their then current …

Locomotive 4023, built in November of 1944, was one of 25 famous "Big Boy" type articulated locomotives. They were designed in Omaha by Union Pacific's mechanical officer Otto …

Feb 11, 2021 · 4023: Having been built later than any of the other remaining 'Big Boys', it is not surprising that, cosmetically at least, 4023 is one of the best preserved examples. Aided by an …

Union Pacific's "Big-Boy" Steam Locomotive, UP 4023, is being readied for a move across town to a new display at the Botanical Gardens near I-80 in Omaha Nebraska. Photo Date: 2/25/2005 …

No. 4023 is one of twenty five "Big Boy" articulated steam engines operated between 1941 and 1959. It was specifically designed to haul fast, heavy eastbound freight trains between Utah …

Union Pacific Big Boy #4023 and Union Pacific EMD DDA40X Centennial class diesel-electric #6900 are the main attractions, celebrating the Union Pacific Railroad's long association with …