Interstate-10 westbound at Milepost 132 near Grosse Tete is now open, according to State Police.
The right lane is still closed. Left lane is open. The tractor-trailer was engulfed and destroyed, but the fire is out. Crews are cleaning up so the right lane can be re-opened.
Troopers think the fire was mechanical in nature. There was no crash.
Traffic is still being diverted through Grosse Tete and State Police are asking motorists to avoid the area.