Operations included one or more daily freight trains, as well as passenger trains, at least prior to the second world war. From the 1950s to the early 1990s, this line saw one or two through trains each way each day, the Wilmington Turn out of Hobart Yard in Vernon, and the Hobart Turn out of Watson Yard. In addition, there were a number of local freight trains working various places, such as the Watson Road Switchers working out of Watson yard in Wilmington, and the Malabar Switcher working out of Malabar Yard in Vernon. Several agencies also had switch engines assigned to them. For example, El Segundo had a single switch engine assigned to work local industries, while Torrance had as many as four assigned switch jobs in 1968. Other through trains included occasional unit trains of grain or copper concentrate, and perhaps other bulk cargoes. However, most of the agency jobs were abolished by the late 1970s. The Hobart Turn was abolished in the early 1980s, leaving the Wilmington Turn as the sole regular through train, with the Watson and Malabar switch jobs serving industries along the route.