The A38 is blocked due to an accident involving two vehicles at the A3259 / Doster's Lane junction.
It's near the Monkton Elm Garden Centre, and is affecting traffic into and out of Taunton.
More top news
It is expected that the work won't be finished until at least Autumn 2018.
Police were called on Saturday June 24 to reports of two vans involved in an alleged ram raid at a premises on Thorverton Road, Exeter.
Renewable energy firm Pure Planet says that Glastonbury goers could use nearly 200 megawatts of power when they return home on today.