M4 junction roadworks warning for Coryton, Cardiff

The M4 in south Wales
Image caption The work is expected to be completed by Christmas

Motorists using the M4 near Cardiff have been warned of disruption for three months due to a £1m roadworks scheme.

The improvement work is due to start on 5 September at Coryton, at junction 32 with the A470.

A new dedicated lane is being built for drivers leaving the M4 eastbound and heading north on the A470.

The Welsh Government said there was "likely to be some disruption".

The work is expected to be completed by Christmas and aims to reduce queuing and improve traffic flow on the eastbound off slip.

"This is a busy section of the strategic road network and there is likely to be some disruption to road users whist the works are in progress," said a spokesman.

Restrictions will be in place to protect the workforce but "every effort will be made to minimise inconvenience" to motorists, local businesses and residents.

The curbs will include lane restrictions and overnight sliproad closures, but advance warnings will be given.

Further information is available from the Welsh Government's South Wales Trunk Road Agency on 01792 325 900 or e-mail

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