A crash on the northbound M6 has damaged safety barriers on the carriageway, forcing police to keep one lane closed in Preston.
Lanes 3 and 4 of the northbound carriageway were closed for three hours this morning, after a collision between junction 31A in Ribbleton and junction 32 in Broughton at around 9am.
Emergency services attended and Highways put traffic management signs and signals in place.
The crash has caused damage to the barrier resulting in emergency roadworks.
Lane 4 will remain closed until later this afternoon to allow repairs to be completed.
Traffic police are advising motorists to take care on the approach and adhere to speed limits posted on matrix signs.
The crash is causing considerable congestion with traffic queueing to junction 30 in Bamber Bridge.
Highways England expect traffic conditions to return to normal between 10.30am and 10.45am.