Sixth Avenue at Ross Street looking in the direction of Wylie Avenue, showing hump cut progress. The Chamberlain Co. Sanitarians and Teufel's Bar & Café are visible beyond the plank walkway over Sixth Avenue. The "hump" cut took place in the area of Downtown known as Grant's Hill. The project began with planning in 1909 and ended with the final cut in 1913. It changed the gradient of Grant Street, Diamond Street, and Oliver, Fifth, Sixth, Webster and Wylie Avenues. Please see, Frederick Law Olmstead, Pittsburgh Main Thoroughfares and the Down Town District: http://digital.library.pitt.edu/cgi-bin/t/text/text-idx?c=pitttext&view=toc&idno=00aep1324m for more information.
