The mainline railway station is closed at Dawlish for safety reasons because waves are coming over the sea wall.
Buses are being arranged to serve the station, but there's no estimate for when these will be in place.
Trains can run through, with a speed restriction.

Are you saying Castle Cary to Westbury is not the main line into Paddington? If so what in your opinion is? Frome is quite clearly not on a branch line.
. Nevertheless, I do support a 2.5mile tunnel under Stonehenge + Winterbourne Stoke by-pass to give logical clear run to A36.
Please