More growth expected as Port expands rail system in largest construction project in a decade. The Cleveland-Cuyahoga County Port Authority reported that overall cargo tonnage increased 31 percent in 2011, largely the result of growth in steel, iron-ore and oversized “project” cargo handled by Port facilities. The Port handled 3.4 million tons of cargo last year – the highest volume since 2008. General cargo volume rose 16 percent as both steel and project cargo posted increases; while bulk cargo increased 33 percent, as more iron ore was handled by Port operations.