M25 Closures During 2025 Construction. The m25 clockwise exit slip at junction 28 will be closed for two weekends from 11pm friday 8 november to 5am. The organisation has also announced that there will be no more full weekend closures of the m25/a3 this calendar year.

The two remaining closures will be next spring, with national. M25 junction 28 clockwise exit slip full weekend closures.