A view of Sixth Avenue at Ross Street, looking toward Fifth Avenue and showing part of the bluff and Duquesne University after the "hump" cut. The "hump" cut took place in the downtown area 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 Streets, 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.