nick - I just saw the spillway on fox cable news. There seems to be very little water flowing down the spillway beyond the big hole. It seems to be all going into the hole and down the cut. I don’t know what this means but it didn’t look right. I thought they filled that spillway hole up with rock?
found a pix #19:
http://www.mercurynews.com/2017/02/19/oroville-dam-dramatic-photos-show-damage-to-dams-emergency-spillway/
The spillway is extremely compromised. I don’t know that their fixes helped in a significant way.