A428 Black Cat to Caxton Gibbet

Improving the A428 near St Neots.

Region:  East
Start date:  2021/22
Cost:  TBC
Status:  PLANNED
Type:  Major Scheme
End date:  TBC

Progress report

We are in the advanced stages of planning for the preferred route announcement and will confirm details in Spring 2019.

We've been analysing technical data and reviewing feedback from the consultation events. We have continued to develop our traffic modelling and carried out baseline environmental studies. This detail will enable us to make a more informed decision and ensure we identify the right long-term transport solution for the region.

As soon as the route is confirmed, we'll engage with all those directly affected to understand any concerns and opportunities. We will also hold a public consultation on the route with a number of public events in the area. This will give our stakeholders and customers another opportunity to help shape the scheme before the start of the formal Development Consent Order process.

The scheme is part of our plan to improve journeys between Oxford, Cambridge and Milton Keynes. This new timetable does not change our ambition to open this new route, including the missing link between Milton Keynes and Oxford, by 2030.

What's next?

We'll be continuing with surveys for sections of the scheme that are common to all route options.


Date Event
2019 Site surveys including topographical studies, traffic modelling, ecological surveys and ground investigation at key locations for all route options.
2019 Preferred Route Announcement and further engagement with local community representatives and landowners.
2019 Public consultation expected to take place on the developed route option.
2019 Further develop the scheme incorporating input from all consultees.
2019/20 Submit application for a Development Consent Order.
2020 to 2025 Start of works – if approved, construction is expected to proceed in 2021/22.

Why we need this scheme

The A428 between the A1 junction near St Neots and the A1198 Caxton Gibbet is single carriageway with a series of roundabouts and give-way junctions. It experiences major delays during peak periods, resulting in delays and reduced speeds. With few available diversions, incidents and accidents result in disruption over a wide area.

The A428 is an important route in an area of the country where considerable growth in housing and employment is planned.


The scheme will:

  • reduce congestion and delays
  • increase road capacity
  • improve journey time reliability
  • support the growth identified in local plans
  • improve safety
  • provide alternative access to local roads
  • help the transport network to better cope with road maintenance and with incidents such as collisions, breakdowns, maintenance
  • improve the environmental impact of transport on communities along the existing A428 route
  • provide improved routes between communities for cyclists, horse riders and pedestrians
  • reconnect communities
  • improve safe and effective access for public transport users

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Project timeline

Planned roadworks

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