ROADWORKS will cause disruption to motorists on the M1 starting tomorrow.
The southbound entry and northbound exit slip roads at junctions 40 and 41 will be closed between 9.30am and 3pm, until Wednesday, January 18.
And the southbound exit slip road at junction 40 will be closed during the same times until Thursday, February 2.
Some parts of the hard shoulder and inside lane will also be closed overnight in both directions.
Diversions will be in place throughout the £850,000 project, which upgrade lighting along a three-mile stretch.