Two lanes on the M6 northbound were closed between junctions 31A (Haighton Interchange) and 32 (Broughton Interchange) following a car crash at around 4.30pm today (August 25).
One lane was also closed on the southbound carriageway between junctions 32 and 31A as a result of the collision.
But Highways England have now confirmed only lane four of both the northbound and southbound carriageway is closed due to "damage from the collision."
Police, paramedics and fire crews rushed to the scene where a car had allegedly overturned.
A spokesman for Highways England said: "The M6 northbound J31A (Preston East, Longridge) to J32 (Broughton Interchange, Blackpool, Preston North).
"Two lanes have been closed due to a minor collision.
"Traffic Officers, Lancashire Road Police, Lancashire Fire and Rescue Service and North West Ambulance Service are currently at the scene."
Motorists travelling on the M6 to get to Preston, Blackpool and Blackburn were warned to expect delays of up to 45 minutes due to traffic building in the area - approximately three miles of congestion northbound and two miles of traffic southbound.
Congestion was also reportedly been backing onto the M55 eastbound at Fulwood.