Judging from that video of the shutdown, the shotcrete treatment at the face of the spillway break didn’t hold up too well.
See what y’all think.
https://www.youtube.com/watch?v=3Tcf9jXoS6Q
I don’t think they used the shotcrete to build a water ramp so much as they reinforced under the bottom of the spillway to prevent further collapse. The brown muddy water is a result of lowering the spillway enough that it was no longer throwing the water out over the softer material to the grey bedrock.
I had hoped that they would have built a hardened ramp there but they didn’t.
No surprise here, as expected and predicted. Waste of time energy and material. But hey we did something!