The northbound exit ramp of the A1(M) at Bramham crossroads is currently closed after the lorry left the carriageway and lodged itself on the grass verge.
The closure was originally thought to be in place for two hours, but Highways England are now advising drivers that the 'complex' recovery could take longer than first thought.
They said: "UPDATE #A1M at #BramhamCrossroads J44 northbound exit.
"The process of moving the lorry begun at 10am and is proving to be a complex recovery.
"Therefore the closure will remain in place longer than anticipated."
Traffic is delayed in the area, with the nearby A64 expected to be closed all weekend due to a gas leak.For the latest traffic and travel news in the Leeds area, join our new Facebook group by CLICKING HERE.