||This article does not cite any sources. (December 2009)
The A4155 is a road in the United Kingdom that starts at Bourne End in Buckinghamshire and leads westwards by way of Little Marlow, Marlow, Medmenham, Henley-on-Thames, Lower Shiplake and Caversham to terminate at Reading in Berkshire. Its route follows the north bank of the River Thames and thus it becomes very congested on the days of the various regattas and similar events in the towns it serves.
Coordinates: 51°31′20″N 0°53′37″W / 51.52228°N 0.89371°W