There have been numerous washouts through the Fraser Canyon, including a rail bridge washout and derailment near Boston Bar.
Both CN and CP Rail say their operations have been impacted and there is no word on when service can resume.
All rail traffic has been halted in and out of the Port of Vancouver, while crews wait for a damage assessment to be complete.
There are already concerns over supply chain disruptions caused by flooding in the province.
The head of the BC Trucking Association said Wednesday that people need to “calm down” and “the goods are coming.”
Every major transportation route between the Lower Mainland and the Interior has been cut by washouts, flooding or landslides following record-breaking rainfall across southern B.C. between Saturday and Monday.
The province has been updating the status of the highway closures and when the routes might reopen.