It might fix everyone slowing down to a crawl as they go past Stonehenge though. The a303 is a dual carriageway that goes down to 1 Lane past stone henge, the new tunnel would stop the bottleneck that happens as it goes past stonehenge, if having a busy road that goes past Stonehenge hasn’t affected it’s world heritage status, then changing that to a tunnel shouldn’t affect it either, if anything it will improve the aesthetics as all you can hear there is the road.
The main question should be, could this money be better spent? The answer is obviously yes.
Apart from the obvious Spencer v Bud, what fights are you most looking forward to?