The main road is due to reopen on Friday at the White Shops junction, Catterick Garrison.
Surfacing of the footways and carriageway started on Monday and will take a week to complete.
The main road will then be reopened to two-way traffic including the bus stop and parking bays, with a temporary pedestrian crossing in position.
Following the surfacing of the main road, the side roads will be finished under the current closure. After that, the road markings and the cable laying (which is positioned in the final surface) for the traffic signals will be completed.
This will need temporary traffic management on the main road for short time periods because of location of the work. All the work is due to be completed by November 30.
The road from Colburn Back Lane to the point where the road has been widened will be resurfaced overnight. It is anticipated that this work will be undertaken overnight on Friday during which a convoy system will be in operation..
Councillor Don Mackenzie, North Yorkshire County Council’s Executive Member for Highways, said: “We have been well aware of the disruptive impact of these works and the good news is that the main road will be reopened by the weekend. We would like to thank everyone for their patience and co-operation during these lengthy works.’’