Соединенные Штаты >
Pennsylvania >
Allegheny County >
Pittsburgh
Showing hump district progress near Smith Bros. Company Inc., Franklin Printing Office. The "hump" cut took place in the area of Downtown known as Grant's Hill. The project began in 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. May 16th, 1913.