that tree and group of bushes on the left is a an island now..
I suspect the roots are slowing erosion but its just a matter of time
I think the spray blowing north is creating runoff hence that new muddy stream...going around that island and downhill
how much it is eating uphill is key....
Yes if the water causes the spillway to collapse any where near the gates all bets are off.
here is the video they, DWR, released taken what looks like yesterday afternoon ..towards the end they flyover the main spillway with reduced flows
but suspiciously, it cuts off before we can see how the upper part of the main spillway is doing
https://www.youtube.com/watch?v=yxgtyOfwrj8