So the ones pictured we’ve had for ever. Never used them until last year when we had trouble crossing the creek with the tractor and combine. The bridge across is good, it’s the soft sand on the other side. We’ve tried gravel but with every flood, it washes away. So the thought is to use these when we cross, then take them back up when done. It worked last year but we didn’t have enough so we had to drive, pull them up, put them back down over and over. For about 175 ft