At last, that's over. I started posting reports on the bridges visited during a 3-day Scottish tour at the beginning of July, and it has taken until now to finish covering them all. There were 35 bridges seen over those three days, and this map shows the ground covered (blue is the first day, red the second, and green the third):
I said at the outset that "Several of the bridges are among those in Britain which any serious Pontist should try and visit once in their life".
These are the ones I would recommend going out of your way to see, if you get a chance: