California's Lake Oroville Main Spillway Severely Damaged/Eroded. Oroville Dam's Recently Reconstructed Main Spillway Fundamentally Flawed

I saw a still photo from a video this morning showing what they claimed was a huge leaking jet (stream) of water emerging from the far left side of the underside of the bridge from the left side of the gatehouse bastion (looking uphill.)

HAS ANYONE ELSE SEEN THIS??

They also showed the same place/photo back in May, and the jet was obviously a lot less intense back then.

The remote viewer thing is freaking me out a touch. This is what she described after the water found it's way through the weir and then later it broke in half??

I'm sorry ...that should say "right" in both places...not "left."

this? [link to youtu.be (secure)] time stamped

Snakes are back on the MS, diverting the "GOOD" leaking water to the right side, looking downhill.

[link to youtu.be (secure)]



He talks about ORO towards the beginning.

Last Edited by UseLessRepEATER on 06/11/2019 03:36 PM

@lisacahillohio

Replying to @ClausDrastrup1
Hope its the angle or the curve of lens. Gate house has serious issues, but I don't expect them to cause uniform tilting of the whole thing. More likely that subsidence/voids and forces of operation/water cause the cracking and differential settlement actually seen there.


@lisacahillohio

Replying to @ClausDrastrup1
Little crack is no big deal imho. A small item for the maintenance list. I'm happy to see what I think is a piezometer. If the Johnny Appleseed of piezometers is hanging around the dam, hopefully he will replace the 53 of 56 original piezometers that quit working many years ago.

Thats clearly snail snot, you can follow it to a falk in the snot where the pair of snails parted, or came together, cant work that bit out from the picture, need video really :)

^ thread link: [link to twitter.com (secure)]

No...That jet is minor compared to what I saw (can't seem to find that video again now) and that was on the third gate from the left looking uphill. This looked like it was shooting out of the bastion on the FAR RIGHT...i.e. the 8th gate.

Now they're gone again. WTH?!?!?!

Did DWR just insert a loop in the live feed??

I have thought it was looping glad im not the only one

Remember all that rock they trucked in? That poor bridge really took a pounding, and it was marginal when that inspection was made over 2 years ago.

There is the 12' crack and the spalling ledge...

at 7 minutes in

If it opens up, the scenario of ES failure applies.

640k CFS flow until 25 percent of lake drains out. But it could V notch further down.

The crack is on both sides of the sensor mount.

Is part of weir shifting from water leaks? Not sure.


Let's ask this.... Do we believe the stress that made that crack is gone? I don't, so I would expect it to grow and considering it's the ES weir, not good imho.

I just checked my favorite threads since I didn't notice it on the front just now.

Sand worm deployment detected highest gate number side of spillway left side camera view, same side as the crack in the pier.

Coincidence? I think Yes.

Further sand worm deployment possible at this time.

That is all,

for now!

Our stalwart friends... Fighting their silent battle against the seeping spillway gates. Such noble beasts.

640 cfs?

Look at what the 2017 spillway cut running at 100,000 cfs or less. I think we'd cut a canyon down to the bottom.

By the way I checked my karma and you people here are so nice giving me greens. I was surprised and am thankful for the many kind words. I am up to 20 so I could pin this twice but I am leaning until waiting to see if we get a more dire or drastic event.

I know the Cahills are working on another video, and so far they haven't expressed evacuation urgency but if that changes I would pin this. Or if it got that bad maybe we should start an emergency thread and I could pin that. Whatever. At any rate I do have the option of two pins.

This dam creeps me out. What is even worse is knowing how typical it is of our old infrastructure. Train tunnels going into NYC are ready to cave in. Dams everywhere are in bad shape. Nuclear power plants are past their lifespan. Bridges are often barely passing inspections. Oroville is just one of so many disasters waiting to happen.

Susan Wolding has put out some good info, no doubt. But she's becoming the Juan Brown of those concerned with the dam. While Juan is all kumbaya, Susan is chicken little.

There is a very good chance the dam will be here next spring, and she's still telling people to run.

While she may be right, people would do well to leave, in my opinion she's hurting the cause at this point.

She will be screaming to run next year, and if there are more years, every year the dam still stands. All the while losing credibility for the cause, not just herself.

Just my two.

Bane immunity for 1 month is nice to have just in case.

It's kept me posting in times past.

I have to say it's not a question of if but when these disasters happen. They very well could all happen at or close to the same time as each other. It may not be this year. It may not be next year or even the year after. But I gotta say within the next 10 years 20 years at the very most I think we will see these dams, nuclear power plants, and bridges fail.

I agree

To add, the ES is designed as a slow fail of the dam. Instead of the earthen dam being topped. Which is a faster, more catastrophic failure.

The only time that should be used is if the main dam is going to be topped and then V notched rapidly.

It's just a lesser evil of the two.


When I saw the ES get RCC like it has, I thought WTF!

ps. Sand fire 60% contained at 2,500 acres.

[link to www.sfchronicle.com (secure)]

Amanda,

The RV saw a section of the ES weir break, push forward, and then tumble down the hill.

Considering that she said that the problem started where the ES joins the MS gateworks abutment, that would fit perfectly with breaks at both:

1) The piezoelectric sensor location (mid ES, somewhere near the middle of the new concrete apron)

AND

2) The connection of the ES to the MS gateworks abutment.

Last Edited by TheRescueOfTheBride on 06/11/2019 10:20 PM