Sections of the A630 Sheffield Parkway and A57 Mosborough Parkway have been affected by expansion of the material used to construct the sub-base layers of the road. This has produced surface deformation and characteristics not dissimilar to those caused by subsidence.
The Department has provided an additional £4.3 million to Sheffield city council for remedial work on both sections of road. Works on the A57 Mosborough Parkway are complete and works on the A630 Sheffield Parkway are due to start in the summer of 2007. The works involve removing the affected material and a total reconstruction of the carriageway, which will of course include resurfacing.