ER333,
I know you are zeroing in on something very specific and I am sure it is telling. What I get is general understanding.
This spillway had the above drain slab thinning showing evident cracking related to it before it even finished the original construction. The repairs during the life prior to the 2017 failures were ineffectually conceived and managed by California DWR.
We now have had the catastrophic events of last year putting the public at terrible risk, we have seen California DWR spend a half a Billion dollars and we have significant cracks even before the spillway is completed. While the above drain thinning is not repeated, all of the problems are repeated. Cracks, joints that won’t work as conceived and a very short life expectancy with sudden failure at an unimaginable time window sometime in the future.
People hired for their political bent and managed by same will produce similar results elsewhere in the state and nation.
“General understanding” is what I derive too as the full implications of the specific parts of the report referred to are not obvious to me - much as I’d like to understand them after months watching and waiting to get to the stage of this report.
What jumped off the page earlier in my read were the references to the designer of the spillway (unnamed) being inexperienced, not visiting the construction site more than once, having no real interaction with the geologists involved and not being consulted about what seem to be innumerable on-the-hoof changes in the original spec. It seems clear that the spillways were badly built to start with - makes me edgy about the rest of the complex.