MAJOR roadworks will commence next week on the Warrego Highway and Gatton-Esk Road as part of a $4.5 million upgrade.

The works will form the foundation for a new, permanent facility at Gatton allowing road train trucks to decouple east of Toowoomba.

It will deliver 30 jobs to the region.

The project will include widening and strengthening the on and off-ramps, roundabouts and connecting roads at the Gatton bypass.

READ MORE: New Gatton truck pad to be built at interchange

It will also include extensions to the acceleration lanes onto the Warrego Highway.

It's expected the upgrades will be completed by October, with the works on a the new facility itself expected to commence later this year.

The permanent decoupling facility will be located mostly on crown land next to the Warrego Highway and Gatton-Esk road interchange, on the southern side of the highway.

It will replace the pre-existing truck pads at Lawes, which have a two-hour parking limit.

READ MORE: Two-hour turnaround at new Warrego Hwy truck pad spot

Transport and Main Roads Minister Mark Bailey said the development would allow freight-efficient and multi-combination vehicles to reconfigure east of the Toowoomba Bypass.

"This is a brilliant result for our truckies that will replace the temporary pad, which we built while we worked hard to plan for this new, comprehensive facility," he said.

"As part of the $1.6 billion Toowoomba Bypass, the Palaszczuk government negotiated with the Federal Government to expand the project's scope and include a new permanent breakdown pad east of Toowoomba."

Read more news by Ali Kuchel