London Bridge has been closed to most private vehicles for seven months while major road works are carried out.
Buses, licensed taxis, motorcycles and bikes are the only modes of transport allowed to use the central London crossing, until the end of October.
Pedestrians can use the bridge, on restricted routes, but cycle lanes will not be in operation.
Hammersmith Bridge, in west London, is also currently closed to all vehicles for repair work to take place.