Diversions will be in place from later today as road improvements begin on the A34 at Chieveley.
The work is expected to continue for a week. The slip road from the M4 at junction thirteen will be closed from 10pm tonight until 6am.
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Delays are expected around the region over the Easter break. Rail engineering works mean that some services are suspended.
Wednesday night's weather for the east of the region
Wednesday night's weather for the west of the region