Even more of the A14 is now closed following a lorry crash which took place this morning.
The A14 is now closed from the J31 exit slip road.
Highways England are urging people to find an alternative route where possible.
An alternative is to join the M11 southbound or continue along the A428.
Drivers should expect severe delays when travelling along the A14.
The recovery of the lorry is now complete, and contractors are working hard to replace the damaged barrier.
Highways England are warning motorists to expect two hour delays.
Many disgruntled commuters are tweeting about the delays.
One tweeted: "Traffic chaos on the A14 this morning. Ive turned around and will be working from home today."
Another wrote: "Two hours on the road in a 250 mile journey 20 miles travelled on the A14."
You can keep up to date with all the latest travel news by following our Live Blog here.
Keep up to date with the latest traffic news
Sick of always being stuck in queues?
Stay one step ahead of the Cambridgeshire traffic with our Cambridge Traffic and Travel Facebook page.
No ads, no spam, just the latest breaking traffic and travel news direct to your Facebook feed, wherever you are.
It's all you need to keep moving while you're out and about, with the latest news and updates from our Cambridge newsroom.
To get to the front of the queue simply click to join the group here.