Year-to-year, the percent change in the value of U.S.-Canada freight moved by truck increased by 8 percent in July 2014 compared to last year.
Shipments between Canada and the US by vessel increased the most of any mode, however – 31 percent.
Trucks carried 52.7% of the $55.2 billion of freight to and from Canada and the US, followed by rail at 15.2%, pipeline at 14.8%, vessel at 6.3% and air at 4%.
The top commodity category transported between the U.S. and Canada was mineral fuels.
Overall, the amount of freight flowing between the U.S. and both its NAFTA partners, Canada and Mexico, increased 8.5% in July from the same time a year ago.
New U.S. Transportation Department figures show it totaled $101.1 billion, with increases in all five major transportation modes.