Wallingford Bridge is a medieval road bridge over the River Thames in England which connects Wallingford and Crowmarsh Gifford, Oxfordshire. It crosses the Thames on the reach between Cleeve Lock and Benson Lock. The bridge is 900 feet (270 m) long and has 19 arches. It is a scheduled monument. Since the construction of the southern Wallingford bypass in 1993, most traffic crossing the Thames at the town uses Winterbrook Bridge.