AuSable Chasm Bridge is a historic steel arch bridge with concrete and stone faced approach spans that carries US 9 over the Ausable River at AuSable between Clinton and Essex Counties, New York. It was built between 1932–1933. The main span is 222 ft in length, with two 52 ft foot approach spans, for an overall length with approaches and abutments of 526 ft. It is approximately 40 ft wide, with a span height of 45 ft and overall height of 70 ft. It was listed on the National Register of Historic Places in 1999.