M4 eastbound between J21 and J20 | Eastbound | Road Works

Location : The M4 eastbound between junctions J22 and J20 .
Lane Closures : Lane one will be closed.
Reason : Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : There will be one of three lanes closed.