Great photos of the bridge. Ive been past it loads of times and always fancied a closer look. is it a footbridge now?
If i can get my scanner working ive got some pictures of the quayside line back in the 70's when it was still in use. Apparrently some of the engines used were the sentinel trams from the Wisbech and Upwell tramway.
If you look at the line beyond middleton on google earth there are some interesting looking sidings serving the sandworks.