From Monday (30 March) to Wednesday (1 April), the slip road linking the A14 to M6 will be closed westbound between 9pm and 6am.
The following week, on Tuesday and Wednesday (7 to 8 April) overnight work and closures of the slip road will continue between 9pm and 6am.
These closures are necessary to start forming the deck for the new M6 to M1 viaduct which crosses over the slip road.
In addition, on Tuesday (31 March) and Wednesday (1 April) the A14 westbound carriageway will be closed between A14 junction 2 and the M1 to switch the westbound carriageway onto a new temporary alignment. This will allow work to commence on the new A14 to M6 link unhindered. The work is being undertaken overnight to minimise disruption to road users.
Highways Agency Project Manager Ivan Marriott, said:
This important scheme has been progressing smoothly. We now need to work on the new viaduct linking the M6 with the M1 and also pave the way for the new M6 to A14 link.
During the closures, diversion routes will be in place and clearly signed. Road users are advised to plan their journeys, leaving extra time.
I would like to thank road users for their patience while we deliver this important junction improvement. Once the scheme is completed, road users can expect improved journeys.
During the A14 carriageway closures, westbound traffic will leave the A14 at junction 13 and travel westbound on the A45 to junction 15 of the M1 and then travel northbound onto the M1.
When only the A14 to M6 slip road is temporarily closed, traffic wishing to head west onto the M6 will be directed north on the M21 to junction, west on the A4303 before turning south on the A5 and A426 to join the M6 at junction 1.
Further information on the M1 junction 19 improvement project is available on the Highways Agency website at: http://www.highways.gov.uk/roads/road-projects/m1-junction-19-improvement-scheme/.
Members of the public should contact the Highways Agency Information Line on 0300 123 5000.
Journalists should contact the Highways Agency press office on 0844 693 1448 and use the menu to speak to the most appropriate press officer.