M27 schemes
The M27 runs along the south coast between Cadnam and Cosham in Hampshire and connects Portsmouth and Southampton along the Solent.
The M27 is a key route for freight, holiday makers and commuters between the ports towards London and journeys to the west from the M3, A3 and beyond.
We’re making a number of improvements to create safer, more reliable journeys for the thousands of people who use it every day.
Click the links below to find out more.
Project information
Upcoming maintenance projects listed alphabetically by road name.
M27 night work between Whitely and Fareham/Gosport
We'll be working on the eastbound M27 between Whiteley and Fareham/Gosport overnight on:
- Monday 13 October
- Tuesday 14 October
- Wednesday 15 October
- Thursday 16 October
On those nights the mainline M27 will be closed eastbound between junctions 9 and 10.
There will be lane restrictions between junctions 10 and 11 and the eastbound slip road at junction 11 will also be closed.
The closures and lane restrictions will be in place each night from 9pm to 6am.
We'll put signposted diversions in place while we work.
Please remember that closures can change at short notice. You can check the latest information on our daily closures page or find live travel information on our Traffic England site. Our travel alerts give details of live incidents on our network.
M27 junctions 5 to 7 concrete overlay
Concrete roads make up almost 400 miles (4%) of England’s motorway and major A-road network.
Our scheme will see a new low-noise surface installed between junctions 5 and 7 to provide smoother, quieter journeys and extend the road’s life span for years to come.
M27 junction 8 improvements
This part of our network has a poor safety record and sees high volumes of traffic at peak periods.
We intend to make improvements to both junction 8 on the M27 and the A27 Windover roundabout by adding extra lanes and improving signalling to ease congestion.
M27 junction 8 maintenance
We've had to postpone our planned maintenance works until further notice.
Narrow lanes and speed restrictions are in place on M27 in both directions between junctions 8 to 9 due to earlier safety barrier damage and investigation work.
Please check back for future updates.
We'll still need to repair some of the bridge joints and put in some waterproofing to protect the bridge from severe weather. These joints allow the bridge to expand and contract in different temperatures and can become damaged if exposed to too much rain.
M27 junction 10 improvements
About our improvements
We’re working closely with Hampshire County Council who are developing junction 10 so it has links in all directions between the M27 and A32.
The improved junction will support economic growth in the area and the new Welbourne Garden Village.
More information is available on the M27 junction 10 improvements scheme page.
M27 junction 12 Hilsea Interchange IBM bridge repairs
We need to:
- replace kerb drainage
- upgrade drainage systems
- re-waterproof and resurface bridge decks
- repair concrete underneath both bridges
Visit the M27 junction 12 Hilsea Interchange IBM bridge repairs web page.
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