Union Pacific have confirmed that Big Boy 4-8-8-4 No. 4014 will be in Ogden, Utah 10.05.2019, in celebration of the sesquicentennial of the first transcontinental railroad.In a Facebook live event in conjunction with the CBS affiliate in Cheyenne, UP steam manager Ed Dickens said the restored Big Boy as well as 4-8-4 No. 844 will travel to Ogden, Utah, for the celebration. He said the engines will re-enact the scene made famous by the two American-type locomotives, the Central Pacific Jupiter and UP 119 on May 10, 1869 at Promontory Summit. Ogden is the closest UP point to Promontory, where the railroad was abandoned during World War II..