First Great Western have announced that trains between Topsham and Exmouth will be disrupted until January 3rd.
The line was closed due to 'embankment scouring' in Lympstone.
The company have released the following statement.
Owing to flooding earlier between Topsham and Exmouth trains have to run at reduced speed on all lines.
Train services running through these stations may be cancelled, delayed by up to 15 mins or revised at short notice. Disruption is expected until 09:00 03/01.