Sunday 22nd July to Sunday 7th October
East Midlands Trains services between Wellingborough and London St Pancras International are not affected and will continue as normal.
East Midlands Trains services to and from Nottingham are not affected and will continue as normal.
The majority of East Midlands Trains services between Wellingborough, Chesterfield and Sheffield will terminate at Derby. Passengers for Chesterfield and Sheffield will need to change trains at Leicester.
Between Sunday 13th and Sunday 19th August, passengers travelling from Wellingborough to Derby or Long Eaton will need to change to a rail replacement service at East Midlands Parkway.