Rachel Carson Bridge, also known as the Ninth Street Bridge, spans the Allegheny River in Downtown Pittsburgh, Pennsylvania in the United States. The total length is 840 feet including the 410-foot main span and two 215-foot side spans, or 995 feet including the approaches. The total width of the deck is 62 feet, including the 38-foot roadway plus two 10-foot sidewalks outside the compressive plate girder. Whereas the roadway formerly carried two vehicle lanes and two streetcar tracks, it now carries four wide vehicle lanes.
Named for the naturalist Rachel Carson, a Pittsburgh native, it is one of three parallel bridges called The Three Sisters, the others being the Roberto Clemente Bridge and the Andy Warhol Bridge. The Three Sisters are self-anchored suspension bridges and are significant because they are the only trio of nearly identical bridges—as well as the first self-anchored suspension spans—built in the United States.
Address 9th Street Brg, Pittsburgh 15222, United States
Coordinates 40°26'47.935" N -79°59'59.459" E