Tower Bridge to Beckton and Rainham - Sustrans.org.ukRoute 13 is a 136.3-mile route on the National Cycle Network, connecting Tower Bridge in London with Dereham.routeShare this page This route is on the National Cycle Network. Setting off from Tower Bridge the route passes through East London close to the Thames. It then heads north from Tilbury to Chelmsford in Essex. After a stretch on National Route 1 (also part https://www.sustrans.org.uk/find-a-route-on-the-national-cycle-network/route-13/