Location : The M4 westbound exit slip at junction J18 .
Lane Closures : Lane one will be closed.
Reason : Horticultural works are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 20 May 2026 to 22 May 2026.
Lanes Closed : There will be one of two lanes closed.
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