West Somerset Railway says today's crash is the third to have happened at the bridge in Norton Fitzwarren since June last year.
This is the first where the car actually landed on the track. The driver was not hurt and the Ford Fiesta has been removed.
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Pupils at Hayle Community School launched the pasty as part of a project they are undertaking.
After a dry end to the day, it will grow colder overnight with a light breeze.
It will turn chilly tonight with largely clear skies and light winds.