I agree we need something to combat radiation with and adding new foundations / walls sounds like one way to do it but I think there is also another way.
Perhaps it would make sense to add some sort of shielding for the containers? Like adding new lead reinforced container that would not necessarily block all the radiation but at least greatly reduce it's effects?
And in terms of long range transport we could maybe get lead reinforced cargo cars that would again greatly reduce the effect of radiation so you don't get sudden radiation attacks everytime a train with uranium goes somewhere around you.
I know lead is not in the game, but you get the idea.