This is the second group of Kroger truck drivers to unionize with the Teamsters, after nearly 300 drivers in Michigan voted in favor of the move in May.
Demand has been especially strong in the U.S., where retailers and other importers are stocking up at warehouses amid worries about new tariffs a possible dockworkers strike.
The M/V Dali crashed in the Key Bridge on March 26, killing six maintenance workers and sending the bridge into Baltimore's main shipping channel in pieces.