At first glance, this may just look like another one of the many rock trains headed to Houston each day to feed the immense demand for concrete. However, a second glance may notice the train is rolling through a railroad crossing with the gates up! At the time, UP was bringing the new "Main 1" of UP's Glidden Subdivision into service, which necessitated a suspension of all signals and railroad crossings over a roughly 7 mile portion of busy main line. So flaggers were positioned at each of 13 crossings to protect cars from oncoming trains all day and all night for several days.
