An eastbound stacker from North Platte, NE, to Dupo, IL, rolls into Marysville for a crew change. This nice Tier 4 leads the train as they cross the Big Blue River in northern Kansas. Marysville is the crew change point for trains traveling to and from North Platte and KC. If you look at the bridges the UP added a 2nd mainline west of Marysville towards Gibbon, NE, in the 90's. I would guess the bridge on the right is original UP, and left is the new one for the double track project.