A clean SD70AH shoves on the rear of Dupo, IL to Long Beach, CA intermodal IDULB. An ex-SP cantilever signal bridge guards westbound movements at CP SP988, the east end of Tucson Yard. On it are three tri-light target signals, what seemed to be the go-to signal towards the end of the SP era and early UP in the 90's. Also included is a newer hooded signal, adding infrastructure from a third era of signaling. This signal structure has since been removed. The domestic containers the 8992 is coupled to are part of IDULB's East Los Angeles set out, and will be unloaded at the intermodal yard there while the marine containers on the front of the train will continue to ICTF.