Wouldn't the natural thing to do be to bury it? That's what we do with other important wires. Hanging it off old telephone poles seems like a recipe for recurring disaster.

Does it need to be a metal wire? Or is, say, a plastic pipe enough? In the spirit of the other comments here, there are plenty of those already in place. Certainly with the involvement of the land owner, which in these cases probably are the city or the state.

It would be interesting to hear from someone who are involved in these traditions to hear their view.