A1 Leeming to Barton improvement

Charlie Stewart

A1 Leeming to Barton improvement

Works to upgrade the A1 Leeming to Barton by replacing the existing dual carriageway with a new three lane motorway.

Scheme stats

Region: North East
Start date: March 2014
Cost: £380.3 million
Type: Major Scheme
End date: June 2017
Project status

Progress report

Our work to upgrade the existing A1 between Leeming and Barton is around 80% complete. The project is being carried out by contractors Carillion Morgan Sindall JV on our behalf. We are preparing to switch traffic onto the new section from Leases Lane to Catterick Central. Once this has happened in early September 2016 we will begin works on the old A1 converting this to local access road and demolishing 3 bridges. We have recently switched traffic onto the new southbound carriageway from Leases Lane to junction 51 Leeming. Work to convert the old A1 (from Leases Lane to Catterick Central) to local access road has begun.

What next?

We will demolish 3 old bridges that are no longer required. We are preparing to rebuild Fort Bridge and will lift the new beams into place in October 2016.


Date Event
December 2012 Chancellor of the Exchequer announces scheme
3 April 2014 Temporary traffic orders came into force
March 2014 Scheme start
Spring 2015 Local access road improvements
Spring 2014 to spring 2017 A1 improvements Catterick-Brompton earthworks
Summer 2014 to summer 2015 A1 improvements Leeming junction to Leases Lane northbound
Summer 2015 Local access road crossing at Lords Lane: new bridge construction
Winter 2015 Sowber Hill Farm: new accommodation bridge construction
Winter 2015 Construction of new Tunstall Bridge
Winter 2015 A6108 Richmond Road: new roundabout open
Summer 2016 Brompton North and Brompton South bridges: bridge replacement
Summer 2015 to spring 2016 A1 mainline improvements: Leeming junction to Leases Lane southbound
Summer 2015 to winter 2015/2016 Catterick North to Scotch Corner: local access road improvements
Autumn/winter 2015 New Catterick Central junction open
Autumn 2015 to winter 2016/2017 A6136 Fort Overbridge replacement
Autumn/winter 2015 Scotch Corner junction improvements
Spring 2016 Catterick South junction closure
Spring/summer 2016 Leases Lane to Catterick Central junction. New off line motorway section open
Autumn 2014 to Spring 2017 Scotch Corner to Barton A1 mainline improvements
June 2017 End of works

Why we need this scheme

The 12 mile section of the A1 between Leeming and Barton carries between 59,000 to 69,000 vehicles per day. It has poor alignment with many side road junctions, farms and field accesses. The accident rate is broadly in line with the national average for older dual carriageways, but the severity ratio is significantly higher. Incidents often lead to full closure of the route with lengthy diversions. This is the only section of non-motorway on the strategic M1/A1(M) route between London and Newcastle. The A1 Leeming to Barton upgrade will replace the existing dual carriageway with a new 3 lane motorway. We will provide a new local access road alongside the new motorway, improving safety for local traffic from the surrounding communities. Access to the motorway will be via a new grade separated junction at Catterick and an improved junction at Scotch Corner.


Our main aim is to improve safety and to improve journey time reliability between London and major urban centres in the north of England and Scotland.

Cyclists, horse riders and pedestrians

Coast to coast walk: diversion at Agricola Bridge (adjacent to the River Swale). An alternative route is available on the south side of the river Swale using the A6136 and crossing a temporary bridge over the A1. The closure order and diversion map can be found on the North Yorkshire County Council website.


Don’t miss an exciting opportunity to see what archaeologists uncovered next to our road scheme. We’re working with Northern Archaeological Associates to provide an exhibition of the finds at Richmondshire museum – open now until 31 October. The display includes artefacts dating between the Middle Stone age, Iron Age and Roman period. Rare finds include a miniature sword, complete with iron blade and a bone handle which was recovered during excavations at Scotch Corner – thought to be an offering for the gods.

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