I thought of rock drains, but I'm space constrained behind the slide- I have a road on top of the slope.
If I do need piles, I'd pin it near the top, since that is what I want to keep. Maybe half-way down.
My first reaction was to pile rock on the toe of the slope and lay back the surface...
I work for a state parks system. The system has little money since we need to be self supporting. And the bosses hate anything that looks "engineered."
I have a 600' slope failure along a shoreline I need to deal with. About a year ago, the shoreline was armored. Pre-armor photos clearly...
