Traffic was caught in a rush hour snarl-up after a car and a lorry collided on the M6 near Preston.
Two lanes of the southbound carriageway were closed between Broughton and Samlesbury, causing tailbacks on both the M6 and the M55.
Police say the smash happened around 3.40 this afternoon and work on clearing the damaged vehicles affected lanes one and two of four.
Queues stretched back up the M6 towards Barton and along the eastbound carriageway of the M55 towards Kirkham. Drivers faced a hold-up of around 40 minutes.
It is not known if anyone was injured in the collision.