Old State Road Bridge

Old State Road Bridge is a historic Pratt Pony Truss bridge over the Ausable River at AuSable Chasm and Chesterfield in Clinton and Essex County, New York. It was built in 1890. The bridge is 107 feet (32.6 m) in length, 23 feet (7 m) wide, and 10 feet (3 m) in height.

It was listed on the National Register of Historic Places in 1999.