[meyer]

Thank you for your research and continued explanations. The stuff is fascinating to me.

Meanwhile, on the spillway (and I hope I’m not repeating a prior post)...

http://www.water.ca.gov/oroville-spillway/pdf/2017/Memorandum_050517.pdf

[janetjanet998]

drone video of the spill
https://www.youtube.com/watch?list=PLeod6x87Tu6eVFnSyEtQeOVbxvSWywPlx&v=avOwvE7yfso

at 3:09 you can see the stripes on the inside north wall they still look straight(unless they reset them recently)

[EarthResearcher333]

Hi meyer, there are a few interesting "new" items in this report that are very unusual. They state that there was a "contributing" waterflow source. This may be in reference to the spring that is 200 ft slightly upslope and West of the failure area. I suspect this comment of "contributing" is relating to a historic spring waterflow that cut across the foundation causing the high volume of weathered rock. This "percolation" seam is in one of the early dam construction photos (imaged processed) posted upthread.

I have new evidence that sheds light on what may have plugged the drains in the failed zone. p.s. it was not from tree roots...

When I get around to it I'll try to post this new information.