M27 road closure over Christmas period

Afull closure in both directions between J9-J11 of the M27 in Hampshire is scheduled from 8pm, 24 December 2025 to 4am on Sunday 4 January 2026.

Hampshire County Council has advised road users to expect severe delays and to plan ahead during the festive period. The closure is planned to install a new dual carriageway underpass beneath the motorway, a major component of the J10 improvement scheme.

Road users should be advised in addition to the road closure:

There will be a signed diversion route along the A27, which is mostly two lanes in each direction, during the closure.

Drivers will be able to exit the M27 westbound at Junction 11 and eastbound at Junction 9, but there will be no westbound entry to the M27 at Junction 11 and no eastbound entry at Junction 9.