We, too, have seen girls turned away for being even just a 1/2 inch too tall. It's sad, but it did happen. Though we also saw a few sneak through who were just a little over, but I think that was a very rare occurance and I would not suggest taking the chance if you are coming from too far away.
Unfortunately I think that many girls are now too tall. My daughter is awfully close herself, but we have her 10 year physical scheduled for Monday morning, so we'll have a better idea then if she can go or not. That timing couldn't have been any more perfect if I had tried, lol!