the highline is the original trail. Its always been a wee bit tippy but its only in the last couple of years that people have driven up the creekbed. The first time I went down that trail 5 years ago it was MUCH tighter much more overgrown, and there was most certainly only one route.
It is way more washed out than I've ever seen it before. I stayed high on Saturday, but leinies is right if you aren't full width you aren't making that line. Its too far gone and would take major re-building to make safe.