The Roberto Clemente Bridge, also known as the Sixth Street Bridge, spans the Allegheny River in downtown Pittsburgh, Pennsylvania, United States.
The Bridge with Downtown Pittsburgh in the background.
Roebling's second version (1859) of the Sixth Street Bridge.
Plaque on the North Shore of the Sixth Street Bridge.
John Augustus Roebling was a German-born American civil engineer. He designed and built wire rope suspension bridges, in particular the Brooklyn Bridge, which has been designated as a National Historic Landmark and a National Historic Civil Engineering Landmark.
Roebling, c. 1866
A 2006 German stamp commemorating Roebling
The Brooklyn Bridge in February 2007
Roebling's Shop in Saxonburg, Pennsylvania, adjacent to a replica of the Brooklyn Bridge