Dense fog caused the suspension of the Paturia-Daulatdia ferry route for six hours early on Friday.
BIWTC Deputy General Manager (Aricha) Nasir Chowdhury said dense fog is a natural phenomenon, and ferry services could not resume until the fog cleared.
Ferry operations resumed at 8:30am once the fog's intensity diminished, he added.
During this time, over 100 vehicles, including goods-laden trucks, cars and microbuses, got stranded at both terminals.
Bangladesh Inland Water Transport Corporation (BIWTC) officials said the fog began to thicken from midnight and fully covered the waterway by around 2:30am.
To prevent any maritime accidents, they halted ferry services. Ferries loaded with vehicles were held back at both terminals during this period.