I was staying just up the road from where this bridge was erected, the first episode it was seen in was The Pony Set. I got talking to a security guard who was employed to watch over the bridge all the time that it was needed, which was several weeks. He told me that if he was not there someone would nick it, hard to believe but true. Also while watching some of the filming of Pony Set I had the pleasure of meeting Stephan Paczai who was designer of lotsw for several episodes.