Total tonnage on the St. Lawrence Seaway is up this year, according to the Great Lakes St. Lawrence Seaway System.
Shipments of iron and coal are well above last year's total to date, but grain and dry bulk are down.
As of July 31, 13,499,000 metric tons of cargo had transited the Montreal-to-Lake Ontario section of the Seaway, compared with 12,698,000 metric tines through July last year.
Grain shipments through that section dropped from 3,369,000 metric tons last year to 2,754,000 this year.
Dry bulk shipments dropped from 2,503,000 tons to 1,997,000 tons this year.
Iron ore shipments are up substantially, from 3,534,000 through July last year to 5,217,000 tons through July his year.
And coal cargo tonnage has nearly doubled, from 558,000 metric tons last year to 1,075,000 tons this year through the Montreal-Lake Ontario section.
The number of ship transits through that section of the Seaway are down this year, from 1,313 last year to 1,280 this year.