[Rammjäger]

It seems there aren't many ppl with bridge building experience around; I als have a question unanswered.

To get to your problem: I ususally zoom in until I have the bridge in full view and try clicking it; I think the "anchor" point where the icon will show is somehwere just before the start/end of a bridge, not in the middle. Once selected you will see an icon appear. I must say, it's pretty confusing....

So just keep cliking until the icon appears!