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Location : The M4 westbound between junctions J3 and J4 .
Lane Closures : Lanes 3 and 4 are closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 14:15 and 14:30 on 5 March 2026.
Return To Normal : Normal traffic conditions are expected between 14:30 and 14:45 on 5 March 2026.
Lanes Closed : There are two of four lanes closed.
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