Location : The A34 northbound exit slip to the A303 . Reason : Accident involving a vehicle that has left the carriageway. Status : Currently Active. Time To Clear : The event is expected to clear between 11:00 and 11:15 on 28 June 2021. Return To Normal : Normal traffic conditions are expected between 11:00 and 11:15 on 28 June 2021. Lanes Closed : All lanes are closed.