Event Details

  • Date:

Construction of a new roundabout at Bartlow, and safety improvements to the Dean Road junction with the A1307 are set to begin from Tuesday 2 May 2023.

The project to improve safety at a known accident cluster location, will be delivered by the Greater Cambridge Partnership and Milestone Infrastructure in four construction phases over the next 12 months.

During Phases 1 and 4 there will be a need to close the Bartlow Road north, there will be locally signed diversions in place.
During Phases 2 there will be a need to close the Bartlow Road south, there will be locally signed diversions in place.
During Phase 3 the A1307 will be closed over two consecutive weekends (8pm Friday evening to 6am Monday morning) sending traffic on a significant diversion using only National Highways routes.
Excluding Phase 3 and carriageway surfacing, the A1307 will remain open in both directions using narrowed lanes and speed restrictions.

See table below for further details of traffic management during the phased works
All diversion routes are available to view on the CSET 1 website here – www.greatercambridge.org.uk/A1307

What works will be done?

  • Temporary widening of A1307 on the Linton (north) side to enable construction of the new roundabout while maintaining two-way traffic on the A1307
  • Creation of a new roundabout at Bartlow
  • Works to tie in the new roundabout to the existing A1307 and Bartlow Road north and south
  • Reconfiguring the Dean Road junction so that traffic travelling east from Bartlow towards Haverhill using the A1307 from will be required to turn left and use the new roundabout
  • Drainage, landscaping, carriageway resurfacing, road markings and street lighting works
  • Working with Cadent Gas, BT Openreach and Cambridge Water to divert utility services on site where required

Traffic Management during construction

All efforts will be made to keep disruption to a minimum. However, for safety reasons during the works it will be necessary to close Bartlow Road (north and south) and local traffic will follow signed diversions.

During the tie in of the new roundabout to the A1307 (east and west) a closure of the A1307 will be required, with a longer diversion using National Highways roads.

We would like to apologise in advance for any inconvenience these works may cause.

How do I keep up to date with the project?

Please visit the project’s web page at www.greatercambridge.org.uk/A1307

If you have any concerns during construction, you can get in touch with Greater Cambridge Partnership by emailing: contactus@greatercambridge.org.uk or telephone Cambridgeshire County Council’s Contact Centre on 01223 699906.

Alternatively, you can contact Milestone contractors on a1307schemes@milestoneinfra.co.uk



Anticipated Duration

Traffic Management

Additional Information

Phase 1 – Site clearance, Compound set up, Carriageway widening

May 23 –

June 23

Five weeks

Approx three-week closure of Bartlow Road north to Linton using three-way traffic signals (off peak) and lane narrowing

Local traffic wishing to use Bartlow Road north will be diverted via Horseheath Road.

Phase 2 – South side construction (roundabout)

June 23 –

October 23

19 weeks

Bartlow Road south closure, and three-way lights when required

Traffic from Bartlow will be diverted to access the A1307 at Dean Road junction

A1307 lane reduction management at Dean Road junction and approaches

The roundabout will be built off road, maintaining two-way traffic on the A1307

Phase 3 – Tie in new road layout (roundabout) to existing A1307 (east and west)

October 23

Two weeks

Full road closures at weekends using National Highways diversion.

Four-way traffic lights on weekdays

Includes two consecutive 24 hour working weekends;

8pm Friday 20 October – 6am Monday 23 October

8pm Friday 27 October – 6am Monday 30 October

Phase 4 – North side construction

October 23 –

February 24

17 weeks*

Bartlow Road north closure

Local traffic will be diverted via Horseheath Road

*This includes two-weeks non-working time over the Christmas period when the road will be fully opened to traffic.

Concurrent with Phase 4 – Dean Road junction

October 23 – November 23

Four weeks

Road closures (Dean Road north and south alternatively)

A1307 lane and speed reduction management at Dean Road junction and approaches

Commencing and running concurrent with Phase 4 – see above

Carriageway surfacing

February 23 – March 23

Two weeks

Full night-time road closures with local and National Highways diversions as required

Remaining carriageway resurfacing and associated works (including the Compound demobilisation)