Thursday 30th Dec 2010 at Imbil - Yabba Creek crossing No.1 (of 5). Yabba Creek feeds into the Mary River a few km's down from here. By the damage and waterline, it would appear that the water had been 1-2m higher just a day before this.
YouTube - Yabba Crossing 1 damage.MP4
The road was actually closed but locals (and probably campers at Borumba Dam campground) were crossing it. The lady at the pub had said it was damaged but didn't say it was unsafe.
2, 3 and 4 have high water but bridges are ok (4 slightly damaged). Crossing 5 is a water crossing anyway, here's how it looks now. You wouldn't have driven it the day before...
YouTube - Patrol across Yabba 5.MP4
Now, the point the original topic starter was supposed to make - if you saw crossing 1 with as much water over it as crossing 5, you might just drive on over it, but those big folds of bitumen could be enough to knock you offline, maybe even forcing you off the side of the bridge... so be careful!!!
Later we crossed out to the Bruce Highway via Traveston Crossing Rd, the large concrete bridge over the Mary was also under with just the log-jammed railings showing. We crossed ok in the Patrol. Each water crossing we did we watched another vehicle (local) go before we decided it was safe to cross.