Good one

You need to share in the credit Arthur, without your brilliant link I wouldn't have found it. The one thing that narrowed the search on that site, was starting to search around areas where other WAIs had been located and it paid off!
We need to keep that link handy for any future searches!

Thanks for all the mentions, but I was only passing on what I'd found.
I actually came across the Highland Bridges site a while ago, probably in connection with a WAI, but didn't save the link. Then with No. 134 I remembered that there are some interesting old photos at RCAHMS (the body responsible for ancient monuments etc in Scotland), and in a special collection on the St Andrew's University website. I checked these out when Newton Bridge was suggested, and rediscovered the link.
I'm using a tablet here a lot of the time at present, and found that the Highland Bridges site didn't work very well on that (for me at least) so I thought I'd mention it so that someone else could have a go. Very glad it paid off.
Arthur
