People travelling on the M5 are being warned of severe delays tonight (May 31).
Anyone travelling northbound between J26 A38 (Wellington) and J22 ( Burnham-on-Sea) is likely to see delays of an hour.
At points queues have stretched as far as 40 miles of the motorway, with traffic as slow as 10mph in places.
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Highways England has issued advice to motorists, warning people to consider alternative routes.
A spokesperson said: "Congestion spans approximately 16 miles of the northbound carriageway and is concentrated mostly between Taunton and Burnham-on-Sea.
"Delays are due to the extra holiday traffic using these routes but is also due to a number of breakdowns and subsequent lane closures.
"Highways England has resources deployed working hard to restore normal conditions as soon as possible.
"If travelling towards this area from much farther afield, you may wish to change your strategic route, allow extra travel time and follow guidance from our on-road variable message signs and media."
If you're planning a break in your journey, check out all the M5 services ranked from best to worst.
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