May 2021 - Construction completed; December 2020 - Kettering South Junction and Sharnbrook Junction section completed; March 2018 - Kettering-Corby section completed; Project initially included electrification of line between London and Sheffield via Kettering, Leicester, Derby and Nottingham which was cancelled and it was decided to only electrify section between London and Kettering and Derbyshire - Sheffield by 2023; Project is part of GBP1bn (USD1.3bn) Midland Main Line (MML) investment project