One lane of the southbound entry slip road at junction 34 (Halton Interchange) was closed to help firefighters tackle the fire.
The trailer of the lorry was well alight when fire crews from Lancaster and Morecambe arrived.
Firefighters used breathing apparatus, a thermal imaging camera and a water jet to extinguish the flames.
Car on roof causes tailbacks in Morecambe
Drug overdose death of Morecambe woman
Family of four rescued after being cut off by Morecambe tide
Lancaster woman, 34, arrested for money laundering after £60k found in car
Lancashire Police search for injured missing boy Joseph Steeley, 12, who disappeared from Royal Lancaster Infirmary
Lancashire Fire and Rescue Service were at the scene for approximately one hour and forty minutes.
Support us and become a subscriber today. Enjoy unlimited access to local news, the latest football stories and new puzzles every day. With a digital subscription, you can see fewer ads, enjoy faster load times, and get access to exclusive newsletters and content. Click here to subscribe.