View of the "hump" cut progress on Grant Street, looking east from Diamond Street near the Allegheny County Courthouse. The "hump" cut took place in the area of Downtown known as Grant's Hill. The project began 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. for more information.
