Yeah, that’s a good thing given the progress of the erosion over the relatively short time that spillway was in use.
The major threat is alleviated and a secondary threat created: 110,000cfm of water being dumped down the Main Spillway into the Feather River is WAY more volume than normal, and it is THAT volume of water that is the real and present flooding concern.
On another thread I was giving my impression of the area levees south of this lake and on the Sacramento based on what I had seen in 2008 and 2009 when I was working in the area.
I think that there are going to be some failures however, if they stop this out-flow for anything less than a critical dam threat, they are stupid beyond belief.
I think the next thing to bring up somewhere is to explain to people what a “sand-boil” is in the area of a flooded levee. Ground water being so high in the Sacramento river basin.