Here's a couple more pics from the Hook Heath, Woking landslip, showing the state of play on the 6th December 2023. Not sure whether the curve on the left hand tracks on the other side of the bridge (shown in the last shot) was there before or not, I can't remember. Apologies for the low quality images, I only had my phone with me.
I have similar concerns about a number of non-NR locations in the area, where people have felled a lot of trees because they don't like tidying up the leaves, or want more light. I wonder who's responsible for monitoring the state of hillsides which aren't NR owned?