Note This is a split-off thread from https://www.metabunk.org/oroville-dam-spillway-failure.t8381/ Since the eroson of the main spillway is the key risk now water levels are under control, I've created this thread to keep track of any changes in the erosion at the "waterfall" location. Inevitably there will be some "head cutting" and the erosion will the move up the hill. However it seems to have stopped since Feb 10, and the hope is that it is now stable with the spillway spilling over a rock-bedded location. This is a single topic thread on the progression of the waterfall erosion. Please stay on topic as much as possible. Off topic posts may be edited or removed. Closeup on the latest DWR photo taken 8:55 this morning. Appears pretty consistent with this image from Feb 11, so that's good.