The new M27 Junction 10 scheme in Hampshire will soon be open to traffic. From Monday 14 September 2026, the upgraded ‘all moves’ junction 10 will open ahead of schedule in phases, starting with the new westbound off-slip, the motorway underpass and four new roundabouts. The new eastbound on-slip and westbound on-slip are expected to open in autumn 2026.
Once fully open, the upgraded junction will provide full access to and from the M27 in both directions. Drivers travelling to and from Fareham, Wickham, Whiteley, Southampton, Portsmouth and beyond will benefit from new direct connections via the A3222 link road. Approximately 30,000 vehicles are expected to use the new all-movements junction each day once it opens. At present, the current M27 Junction 10 has restricted access, only allowing partial movements for traffic travelling in a westbound off and eastbound on direction.
Originally due to open to traffic in winter 2026, the £100m+ scheme will become operational ahead of this timescale, thanks to an accelerated delivery programme, reflecting strong progress throughout the construction phase.
Temporary speed limits and lane restrictions will remain on the M27 between Junctions 9 and 11 while final safety checks including technology testing take place – this is expected to stay in place until winter 2026. In addition, the new dual carriageway (A32/A3222 link road) through the underpass will initially operate with a single lane in one direction (north bound), providing a new route for traffic travelling towards Fareham, Wickham and the surrounding local road network. This arrangement will allow the remaining works, including landscaping and footway completion, to be carried out safely.
Councillor Steve Forster, Hampshire County Council’s Cabinet Member for Highways, said: “We are delighted to be able to confirm the phased opening of the M27 Junction 10 improvement scheme. The new junction and link roads will improve journeys to and from the motorway network in the short term and support the growth of Welborne Garden Village in the years ahead. It’s a great example of how investment in the right infrastructure can enable sustainable growth, supporting the delivery of thousands of new homes, schools, community facilities and employment opportunities.
“While the scheme will be operational ahead of schedule, essential safety testing and final works will continue for several months. This means that some lane restrictions and speed limits on a short section of the M27 and connecting roads will need to remain in place. We would like to thank road users and local communities for their continued patience and understanding while this work is completed.”
(Picture: VolkerFitzpatrick)
