Westgate could be open by next Tuesday morning, Northern Gas Networks has announced.
The gas works, which have closed the road off since June, were originally set to finish on September 1 and now look set to be completed by the end of next week.
Contractors have just announced the road will be open for traffic by Tuesday.
An NGN spokeswoman said: “The road closure and diversion on Westgate will be removed on the evening of Monday August 12. “Temporary traffic lights will be in place to manage the flow of traffic from Tuesday August 13.”