M1 lane closures planned for five weeks for work on Rotherham bridge
National Highways is carrying out inspection and survey work on the bridge at Hoodhill near Harley to help reduce the need for reactive repairs in the future.
The work, between junctions 35a and 35, will involve concrete testing on the bridge structure and carrying out survey boreholes on the carriageway and verges.
A series of overnight closures and diversions will be in place for five weeks from tonight (Monday).
A spokesperson said engineers would work overnight Monday to Friday, between 8pm and 6am.
There will be lane closures on the M1 in both directions underneath the bridge but the motorway will remain open.
The M1 southbound entry slip road from the A616 at junction 35a will be closed and southbound motorway traffic will be diverted onto the A61 at Westwood New Road roundabout, to junction 36, to access the M1.
The A616 will remain open to local traffic.
The bridge, which carries White Lane, the A6135, will remain open under traffic signals while work is carried out.
For further information, visit nationalhighways.co.uk/our-roads/yorkshire-and-northeast/.