The new lines, intended for the Croydon, Brighton and South Eastern trains, were situated on the south side of the existing Greenwich line, whereas their station was to the north of the London Bridge site, leading to an awkward and potentially dangerous crossing of one another's lines.
De nye spor, der var tiltænkt Croydon-, Brighton- og South Eastern-togene, blev lagt på sydsiden af den eksisterende Greenwichbane, mens deres station var den nordligste på London Bridge-grunden, hvilket medførte en akavet og potentiel farlig krydsning af hinandens baner.