M27 to be closed over Christmas and New Year for underpass construction using Box Slide method
The M27 motorway will be closed completely in both directions between Junctions 9 (Whiteley) and 11 (Fareham), from 8pm, 24 December 2025 to 4am on Sunday 4 January 2026. The closure is required to put in place a new four-lane wide underpass beneath the M27, using a ‘box slide’ engineering technique. Using this method means […]