The Mississippi River could be the latest victim of the epic drought afflicting more than half of the United States.
Lack of rain this year has caused water levels to drop.
According to the St. Louis Post-Dispatch, ship operators are adjusting their fleets. Some commercial shippers are loading more boats with fewer goods on board to adjust for lower water levels.
The newspaper says the Mississippi is the main artery for the country's 12,000 miles of inland waterway.
The drought is affecting farmland as well.
The Agriculture Department named 39 more counties in eight states natural disaster areas Wednesday. That means a total of almost 1,300 counties across 29 states have been designated disaster areas.