score:2
The UK reports of road closures at Daily closures, and seemed to be presented a week at a time. Currently none are listed for the A42, but that could change at a later date.
I did note that google maps shows some congestion around Lount, which could be indicative of current roadworks (nut not a closure)
WetherVane pointed out a different site, but the item there only appears to affect northbound travel.
But given that the UK is criss-crossed by all manner of roads, even if you don't know ahead of time about a closure, then you'll simply be diverted around the road works.