A new carriageway will be constructed in the middle of the junction to remove traffic travelling from the A50 to the M1 southbound from the roundabout and instead redirect it to the entry slip road at M1 junction 23a via the A453.
Completion is scheduled for the end of the year.
Laing O’Rourke is also the principal contractor for the widening of the A453.
Highways Agency project manager Kevin Harvey said: “To have the same contractor for both sets of work will ensure a seamless merge between the two with tighter collaboration in terms of delivery and ensuring disruption is kept to a minimum.”
The work is part of the Department for Transport’s £317m pinch point improvement programme of smaller scale improvements that ease congestion.
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