the pipers' legacy in Tottenham Lane
Essential works maybe but the roots of this lime could have been protected to avoid unnecessary damage to the tree. As it is, time will tell if the tree has sufficient reserves to survive the loss of nearly half its fibrous roots and then having alkaline concrete replace the medium in which they had grown. There used to be a thing called NJUG (National Joint Utilities Guidelines) which recommended methods of protecting tree roots exposed during trenching works. Still, our society doesn't manage to protect babies, so who is going to bother about trees?
The picture shows the remnants of the tree's roots coming from the right, under the concrete and the trench cover.