A229 Blue Bell Hill

The A229 Blue Bell Hill stretches between Junction 6 of the M20 in Maidstone and Junction 3 of the M2 at Blue Bell Hill village. This section of road is a key strategic link between the M20 and M2, and between Maidstone and Medway.

Improvements are needed to increase journey time reliability, reduce delays and enhance road safety on the route.

This scheme is still in an early phase of design and further modelling and assessment work will be done to finalise a design that meets the scheme objectives.

In September 2020 there was an early engagement consultation to ask for feedback on 3 possible options.  From the consultation and further development work, options 1 and 2 have been taken forward for further investigation and option 3 was dropped from the proposals. The consultation brochure and report can be viewed in the scheme documents section.

Changes proposed by options 1 and 2:

LocationOption 1Option 2
Improvements to the Lord Lees Roundabout A229 southbound slip road, at the northern end of Blue Bell Hill.IncludedIncluded
A new slip road at the northern end of Blue Bell Hill, onto the M2 westbound from the A229 immediately after Lord Lees Roundabout.IncludedIncluded
A new separate left turn lane from the M2 westbound to the A229 at Taddington Roundabout, northern end of Blue Bell Hill.IncludedIncluded
Enlarge the Running Horse Roundabout to the west, at the southern end of Blue Bell Hill.IncludedIncluded
Improve the slip road onto the M20 eastbound from Cobtree Roundabout, at the southern end of Blue Bell Hill.IncludedIncluded
Widen the A229 to 3 lanes when travelling southbound towards Maidstone (between Lord Lees and Cobtree Roundabouts).IncludedIncluded
Increase the road width at the northern end of Blue Bell Hill, between Taddington and Lord Lees Roundabouts to 4 lanes.IncludedNot included
Upgrade of the current signalled junction at Taddington Roundabout, at the northern end of Blue Bell Hill, allowing traffic travelling from the M2 eastbound to A229 via a new bridge over the M2IncludedNot included
A new slip road from the M2 eastbound to a new junction arrangement at Bridgewood Roundabout, northern end of Blue Bell Hill.Not includedIncluded

Scheme cost

This scheme is currently estimated to cost up to £199 million. We have put in a bid to the Department for Transport’s (DfT) Major Road Network funding programme for ‘Large Local Major Schemes.’ If successful, this will cover 85% of the costs of the scheme. The remaining 15% will be from developer contributions and other government funding opportunities.

Scheme documents

A229 Blue Bell Hill consultation document (PDF, 926.7 KB)

A229 Blue Bell Hill Equality Impact Assessment (EqIA) (PDF, 353.8 KB)

A229 Blue Bell Hill consultation report (PDF, 984.5 KB)

A249 Blue Bell Hill scheme plan option 1 (PDF, 8.4 MB)

A249 Blue Bell Hill scheme plan option 2 (PDF, 8.4 MB)

This scheme is needed to tackle high levels of congestion, concerns regarding road safety, poor air quality and to support local growth and additional traffic from the Lower Thames Crossing (LTC).

The overall aim of the scheme is to improve journey time reliability and road safety. This will allow the road to accommodate an increase in future traffic, expected as a result of the Lower Thames Crossing and proposed local developments, while providing suitable routes and facilities for public transport, pedestrians and cyclists.

Scheme objectives

The objectives of this scheme are to:

  • improve journey time reliability at the M2 Junction 3 and M20 Junction 6 interchanges of the A229
  • reduce congestion along the route
  • enable the local area to develop in accordance with population and housing growth predicated under Local Plans
  • reduce the impact of additional traffic from the Lower Thames Crossing and allow the Lower Thames Crossing to maximise potential benefits it can provide for the Kent area
  • improve road safety and address known accident hotspots
  • make best use of existing assets including land and highways
  • provide suitable routes and facilities for public transport
  • provide safe and improved routes for pedestrians and cyclists
  • improve air quality, particularly in the Air Quality Management Area
  • protect and enhance the local environment.

Spring 2021

We are waiting to hear back from the Department for Transport (DfT) on whether our business case submission has been successful for funding for the next stage of the work.

The scheme is still in an early phase. Further detailed design work will be required before construction could begin including:

  • more detailed development of the options to establish a preferred scheme
  • refining and developing the design of the chosen option
  • development of environmental mitigation plans
  • further engagement with the community and other stakeholders
  • agreement of funding
  • planning and other statutory consent
  • development of construction plans to manage both the timing of works and impacts on traffic during construction of the scheme.

Anticipated timescales

The forecasted timescales for this junction improvement scheme are:

  • submission of the next stage of the business case to the DfT including details of the preferred scheme – summer 2022
  • planning permission and consents – spring 2022 to summer 2023
  • further detailed design – summer 2022 to summer 2024
  • submission of full business case to the DfT – winter 2024
  • construction to begin – spring 2025
  • completion of scheme – summer 2027 (to be completed before the Lower Thames Crossing opens to traffic).

Funded by

The government Growth Deal provides money to the South East Local Enterprise Partnership, funding projects which drive Kent’s economic and business growth.