This San Bernardino, CA, Z train crosses the 4,082-foot-long Missouri Bridge on the Marceline Sub near Sibley. Only 2 single-track places exist on the Southern transcon still, and both are bridges... (more)

This San Bernardino, CA, Z train crosses the 4,082-foot-long Missouri Bridge on the Marceline Sub near Sibley. Only 2 single-track places exist on the Southern transcon still, and both are bridges... (more)