I don't know if this is true but a ganger once told me that the reason the double track was never finished is because they kept sinking pilings for the Bunyip River bridge but they could never find "bedrock?" (I think thats what he called it, as I'm not a geologist I'm not sure if thats the correct term.) Mark. Visit my train pic website at: http://home.earthlink.net/~markbau/