I'm transcribing a talk I had with Chris Binks about his early days bushwalking in Tasmania, late 1940s, and he says in one part:
"The Loddon’s were bridged in those days by what they called a J-trap bridge, which was three wires strung together with an occasional wire between them, and you just balanced or hung on to the two side wires, and it swayed around."
Type in "J-trap Bridge" into Google and there are no results.
Anyone know what sort of bridge he is talking about and whether it has a name?