The later construction of the Royal Victoria Dock necessitated a swing-bridge on the original route south of Canning Town which was rerouted in 1850 via Custom House and the Connaught Tunnel.
Det senere anlæg af Royal Victoria Dock nødvendiggjorde en svingbro på den oprindelige linjeføring syd for Canning Town, der blev omlagt i 1850 via Custom House og Connaught Tunnelen.