The final section of the A1 between Leeming and Barton has opened as motorway.
The two-mile section of road from junction 52 at Catterick which runs over the River Swale to the north opened last night.
The link means it is now possible to drive on motorway all the way between London and Newcastle.
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Highways England says the third section is now free of traffic management which they wanted to do in time for the Easter holidays.
There is still some traffic management on the local access roads and around Scotch Corner but that should be off in a few weeks.
Some signs still need to be configured too.
There may still be some night closures to finish off some work, including landscaping and lighting, although these will be advised of in advance.
Last month, the second phase – a four-mile stretch between the Catterick North overbridge and junction 56, Barton was completed.
The £380m upgrade started in March 2014 and was due to finish in spring last year.
The work was then scheduled to be completed in December last year, but numerous archaeological finds and the discovery of a major Roman settlement at Scotch Corner held up progress.
You can read more about the archaeological finds here.
The third phase of the #A1 #Leeming to #Barton opens today with all the restrictions lifted on the A1 in both directions as part of the major upgrade to the motorway-improving connections between north and south, easing congestion and making journeys quicker than before.
— Highways England (@HighwaysYORKS) March 29, 2018