Wasn't me, I'm innocent! (of most things)
Any details of where?
Many of the rail bridges in this state that have any sort of history are being comdemned or having speed restrictions placed on them, eg a wrought iron bridge on a main line near here has a 40km/h limit. They won't demolish the bridge because it was built in 1888, and they can't afford the money to maintain it!
Scrap dealers seem to be cutting up all sorts of heritage related metal, and I guess if there's no money in preservation, then the scrapper wins. I have to say though, I keep on good relations with the scrapman here in town and often get a look-in when something nice comes along.