The Government Says

East midlands motorway and trunk road works programme - monday 8 to sunday 14 february 2010

M1 Junction 25 to Junction 28 widening.

http://nds.coi.gov.uk/detail.aspx?NewsAreaId=2&ReleaseID=410995&SubjectId=2

seen at 21:46, 8 February in Independent Chief Inspector of the UK Border Agency News - national.