Motorists heading towards Devon and Cornwall from Bristol are facing delays a stop start traffic until Taunton
According to traffic camera photos, there is almost 50 miles of stop start traffic on the busy road.
There are currently delays of 40 minutes in places between J21 and 22.
Although the congestion was in part been caused by the earlier incident, the lengthy wait times were exacerbated by usual heavy Friday traffic – with the sun shining, routes into Wales and the West Country are busy with those looking to escape for the weekend.
- Scroll down for the latest traffic and travel updates – don’t forget you can get in touch with us on Twitter @Bristollive as long as it is safe and legal to do so.