M27 junction 12 Portsmouth Bridge Works

Scott Gaskin

Works to maintain the integrity of the structure by replacing the expansion joints and bearings, and reconstructing the bearing shelf of the bridge which carries the M275 southbound link over the M27.

Overnight closures will take place with narrow lanes and a 50mph speed restriction in place 24/7 during the entire scheme for your safety and that of our workforce.

For information on roadworks, go to the roadworks finder.

Diversion routes

During road closures the below diversions will be used:

Closure of link from M27 eastbound carriageway to M275 southbound carriageway

  • M27 eastbound traffic will be diverted east to the A2030 Eastern Road Roundabout, circumnavigate the roundabout, join the A27 westbound, then taking the exit for the M275
  • Local traffic from the Paulsgrove/Cosham area will be diverted via the A27 Southampton Road to Portsbridge Roundabout, east along the A27 to the A2030 Eastern Road Roundabout, circumnavigate the roundabout, join the A27 westbound, then taking the exit for the M275

Closure of M27 eastbound carriageway from junction 12

  • M27 traffic will be diverted south down the M275 to the Tipner Interchange, circumnavigate the roundabout, joining the M275 northbound, then exiting for the M27 east towards Brighton/Chichester

Closure of the M27 westbound carriageway from the Portsbridge Roundabout

  • M27 traffic will be diverted off at the Portsbridge Roundabout, along the A27 Southampton Road, left turn at the signalled junction, re-joining the M27 east and westbound carriageway, and accessing the link to the M275