South Washington Street Parabolic Bridge is a historic Lenticular truss bridge located at Binghamton in Broome County, New York. It was constructed in 1886 and spans the Susquehanna River. It is composed of three identical through trusses with an overall length of 484 feet. The bridge was closed to vehicular traffic in 1969. It is the longest multiple span, Lenticular truss bridge constructed in New York State during the 19th century.