Motorists face three months of diversions as overnight roadworks are carried out on the A11.

The project is due to start next month and involve road resurfacing, bridge repairs and general maintenance.

There will be phased overnight closures and restricted access from side roads.

The road works carried out by Highways England will take place overnight from 8pm-6am and are expected to last for three months.

A Highways England spokesman said: 'To keep journeys on the A11 safe and reliable, it's vital that we carry out periodic maintenance to keep the road in good condition.

'We have a comprehensive package of maintenance and renewal work on the A11 that will begin in August.

'We will start on Monday August 21 by resurfacing the southbound carriageway between Red Lodge and Newmarket and also the southbound exit slip road at Newmarket.

'Later in the programme we plan to renew safety barriers, refurbish bridges, update road markings and carry out vegetation management and replanting on the road verge.

'All the work will be carefully planned to keep any disruption to an absolute minimum, and will mostly be carried out overnight.

'Any diversions needed have been agreed in advance with the council and the police and need to be suitable for A11 traffic.'

There will be a speed limit of 50 mph on the A11 Red Lodge Bypass northbound and southbound.

The speed restrictions will run 850 metres south and 50 metres north of the Chippenham Road Bridge.

And also 850 metres south and 50 metres north of the B1085 Newmarket Road Bridge at Red Lodge Interchange.

Lay-bys on the affected route will be closed while the work is carried out, and access to the A11 will be restricted from some side roads at times.

Any closures of specific parts of the A11 and diversions will be clearly marked by traffic signs throughout the works.

Work includes resurfacing and roadmarking carriageways and the removal of trees and replanting at Barton Mills.

Verge safety barriers will also be renewed at Barton Mills as well as bridge joints at Little Ouse and Moulton Bridges.