Suck it, Komiefornia!
This is not a fed built dam, the federal bureau of reclamation did not engineer or supervise the building of this dam. It was totally and fully an effort of the state of california and is their responsibility to keep it in good repair.
They failed, and failed and failed again. They knew it needed a ton of work and passed bonds to fund that work then spent the money on other things.
Anyone and everyone who is threatened by this dam or has had a loss because to the failure should pursue litigation against those at fault, the state of Kalifornia.
THIS IS NOT THE RESPONSIBILITY OF THE FEDERAL GOVERNMENT.