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Major highways projects

Major road projects in North Northamptonshire.

The A43 between Northampton and Kettering suffers from congestion hotspots, journey time delay and road safety issues due to vehicles trying to overtake. To tackle these problems, it is proposed to dual the A43 all the way between the A45 and the A14. Due to the scale of the scheme this will be achieved in phases.

Improvements to the Round Spinney roundabout (phase 1a) were completed in 2015. These resulted in increased capacity at this junction and improved traffic flow.

Phase 2 was a dualling of the section north of the Moulton roundabout to a new junction near Overstone Grange. This was opened to traffic in early 2018.

Phase 1b was fully opened for traffic in June 2020. This provided a new road between the Round Spinney and Moulton roundabouts bypassing the existing road.

Phase 3 is intended to extend the dualling to the Holcot and Sywell roundabout. A bid for Government funding towards this phase was submitted in 2016 but was not successful.

A bid for Major Road Network funding to construct this section was submitted in August 2019. We are now developing a Strategic Outline Business Case to support this submission.

Further phases will be needed to complete the dualling through to the A14 but have not yet been determined.

Public consultation

Consultation and examination hearings for the West Northamptonshire Joint Core Strategy highlighted the view of the local community. Improvements to the A43, among other measures, are necessary to support the proposed development at Northampton North.

Scheme cost and funding

Phase 2 was constructed within its budget of £9.25m. It was comprised of:

  • £6.5m of government funding secured through the South East Midlands Local Enterprise Partnership (SEMLEP) and
  • £2.75m of Section 106 funding from the Overstone Leys development

Phase 1b was constructed within its budget of £17.5m. This included:

  • £7.9m of government funding through the SEMLEP Local Growth Deal, and
  • £4.1m of Section 106 funding

Phase 3 has an estimated cost of £23.7m. A bid for £19.2m of Department for Transport Major Road Network funding is also being progressed.

This page will be updated as the scheme progresses.

The A509 Isham bypass has been developed to address existing traffic issues in Isham and to accommodate anticipated traffic growth in the coming years.

The bypass will commence from the new Symmetry Park roundabout (currently under construction south of the A14 Junction 9) and run in a southerly direction, west of the village of Isham, and re-join the A509 Kettering Road midway between Hill Top and Great Harrowden.

There will be roundabout junctions at the:

  • existing A509 Kettering Road (the Symmetry Park roundabout), south of the A14 Pytchley roundabout
  • B574 Hill Top Road

The A509 is an important primary route in Northamptonshire providing a north / south link between the A14 and A45 trunk roads, serving Kettering and Wellingborough and destinations towards the southwest.

Benefits of the scheme

The bypass will:

  • reduce congestion on the existing A509 through the village of Isham
  • improve transport links between Kettering and Wellingborough by helping to meet the needs of growth in the two towns and
  • improve access from Wellingborough to the A14


Consultation for the A509 Isham Bypass scheme is now open. Members of the community are invited to have their say and provide feedback to inform the ongoing planning process.

View our online exhibition room.

The consultation period will run from Friday 15 July 2022 and will close at 11:59pm on Friday 26 August 2022.

The next in-person consultation event will be held at Wellingborough Market Street on Saturday 20 August from 9am to 4pm.

Online session

A session on MS Teams is taking place on Wednesday 10 August from 6pm to 8pm. Registration is now closed.

If you are unable to make our consultations you can still provide feedback online:

Previous consultation

Consultation on the scheme with stakeholders and the public started in November 2001. Following further refinement, a preferred route was agreed by the Northamptonshire County Council Cabinet in May 2003.

Update July 2022

A bid for Major Road Network funding was submitted to the Department for Transport in March 2020 and they invited us to progress this by submitting a Strategic Outline Business Case, which was done in December 2020. The Borough Council of Wellingborough provided funding to progress the necessary work on the scheme.

The first section of the road, south of the A14, will be constructed as part of the DB Symmetry development adjacent to A14 junction 9. This will require a repositioning of the roundabout junction of the bypass with the existing A509 Kettering Road. A modification of the current planning permission will be needed.

£1.859m of funding from the Department of Transport was secured in October 2021 towards the next stages of developing the proposals for the bypass.

The council’s Executive agreed in June 2022 to amend the preferred route of the scheme to tie into the roundabout being constructed as part of the DB Symmetry development adjacent to A14 junction 9.

There are two main elements to the work, preparation of the:

  • Outline Business Case for submission to DfT in late 2022
  • planning application for submission in late 2022

The main work involved in the planning application is the preparation of the environmental statement, which involves extensive ecological surveys which have to be conducted at the correct time of year for the species or habitat involved.

Alongside both the business case and the planning application there will also be an update to the design of the scheme.

Once planning permission is obtained, the next stages are the detailed design of the road, and obtaining compulsory purchase powers for the land required for construction. Our current expectation is that construction of the road could start in November 2024 with opening in November 2026. However, this will be dependent on whether objections are received to the Compulsory Purchase Orders and whether it is necessary to hold a public inquiry.

Further information will be published here as it becomes available.

Last updated 11 August 2022