M1 to close overnight for Catthorpe Viaduct replacement
The M1 in Leicestershire is to be closed on Wednesday night as work to replace a 45-year-old viaduct continues.
Catthorpe Viaduct, which carries M6 southbound traffic over the M1 at junction 19, is deteriorating and is due to be knocked down.
A new bridge is being built slightly to the south of the existing structure.
The M1 will be shut in both directions at the junction between 2100 BST and 0600 BST.
Diversions will take traffic via junction 1 of the M6 and back onto the M1.
A contraflow will be installed during Wednesday's work. It follows an earlier closure on 21 September, to allow for the construction of the new bridge deck.
The scheme to replace Catthorpe Viaduct started in July 2010, and is due to be complete by spring 2012.
Further M1 closures will take place in October, said the Highways Agency.