Blackfriars Bridge is a road and foot traffic bridge over the River Thames in London, between Waterloo Bridge and Blackfriars Railway Bridge. On the piers of the bridge are stone carvings of water birds by sculptor John Birnie Philip. On the East (downstream) side, the carvings show marine life and seabirds; those on the West (upstream) side show freshwater birds - reflecting the role of Blackfriars as the tidal turning point.