I just found Simon's excellent 2010 photo of the bridge in A2West that we trotted across so merrily:
๐Croesor-Floor-A-West-Image-45912[linkphoto]Croesor-Floor-A-West-Image-45912[/linkphoto][/link]
Hard to judge the water level in the photo, but it's now a good couple of inches above the lower flat of the I-beams.
And there it is (in the distance) in 1978:
๐Croesor-Slate-Mine-Archive-Album-Image-36525[linkphoto]Croesor-Slate-Mine-Archive-Album-Image-36525[/linkphoto][/link]
"The true crimefighter always carries everything he needs in his utility belt, Robin"