Final M27/A27 interchange closure this weekend for massive bridge upgrade project - but hopes it will open early for the Great South Run traffic
The M27 is set to be closed again this weekend for the final time at junction 12 for the massive project to upgrade the bridges at the interchange.
But it is hoped that the works will be completed early which will allow the road to be open on the day of the Great South Run.
The eastbound M27 was expected to be closed by National Highways at the Cosham / Hilsea interchange from 9pm on Friday (October 17) until 6am on Monday, October 20. This will be followed by overnight closures from November 3 to 11.
This is to allow for works to continue for the ongoing project to upgrade the bridges at the major interchange which links the M27 with the A27 and the M275. It will also impact traffic heading north out of the city on the M275 who would then join the M27/A27 towards Havant.
But National Highways has said that it hopes to be able to have the work completed early so that it can be open by Sunday morning - in time for the Great South Run, with thousands of people from the Fareham and Gosport areas expected to travel into Portsmouth that day.
Emma Weston, Project Manager at National Highways, said: “We know that the Great South Run is taking place on Sunday, and with thousands expected to travel to Portsmouth, we are aiming to reopen the eastbound carriageway a day earlier than originally planned.
“Our workforce has made great progress, and every effort is being made so that the road can reopen by 6am on Sunday. With the additional factor of rail works in the region likely to exacerbate traffic in the area, please plan your journey and allow extra travel time.”
Emma added: “Adverse weather can impact our work schedule – so do check your journey before setting off.”
Watch the video embedded in this story to find out more about the project
Removal of the old road surface and waterproofing on the top of the westbound bridge and upgrading the existing surface drainage was completed over two previous weekend closures. Work also continues underneath the two bridges, as well as on the eastbound carriageway which began last weekend during the first of two planned weekend closures.
Eastbound M27 diversion:
- leave the M27 at J12
- turn right at traffic lights onto A27 Western Road
- take second exit at Portsbridge roundabout to re-join the A27 eastbound
Alternatively:
- follow the M275 southbound towards Portsmouth
- leave the M275 at the Tipner interchange
- take the 3rd exit to re-join the M275 northbound
- bear left toward A27
- turn right at traffic lights onto A27 Western Road
- take the second exit at Portsbridge roundabout to re-join the A27 eastbound
Northbound M275 diversion to join the M27/A27 eastbound
- leave M275 at junction 12 towards A27
- bear left toward A27
- turn right at traffic lights onto A27 Western Road
- take second exit at Portsbridge roundabout to re-join the A27 eastbound
Check the National Highways website and follow @HighwaysSEAST on X for any updates. Further information and diversion details are available on the National Highways website here.
For the latest about the project visit the National Highways website at nationalhighways.co.uk/our-roads/south-east/m27-junction-12-hilsea-interchange-ibm-bridge-repairs