>>16696889According to this map I was basing my maps off of, both Vic-Tas and SA-Vic have sections that were shown to be water routes. But I might throw in a couple extra islands between Vic and SA, see if I can't get a multi-section bridge that's a Cycling Road happening.
As for the concept of a "battle bridge", I think some people wanted that to be the Sydney Harbour Bridge. Which is about one-tenth the length of any continuous Vic-SA bridge (the idea was that the bridge itself could be a separate, enterable area that's bigger on the inside).