The Bayshore Cutoff (originally the Southern Pacific Bay Shore Cut-Off) is the rail line between San Francisco and San Bruno along the eastern shore (San Francisco Bay side) of the San Francisco Peninsula. It was completed by Southern Pacific (SP) in 1907 at a cost of $7 million (equivalent to $204 million adjusted for inflation), and included five tunnels, four of which are still used by Caltrain, the successor to Southern Pacific's Peninsula Commute service. Fill from the five tunnels was used to build the Visitacion or Bayshore Yard, the main SP classification yard near the city of Brisbane. The Del Monte was similarly rerouted over the line at some point in its operational history.