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

You didn't bring anything. You want to talk shit about me and you don't even know me.

Put up or shut up.

This is getting boring. You're 61-62. I'm two decades your junior. Not only can I accurately predict the outcome, I can accurately predict me going to prison for it.

Loudmouth know-it-alls like you always get their comeuppances. I don't need to trade my freedom to trust in that.

Your emotional whining has done nothing to stop me from calling out captard on his spamming. You lose. Bye now gramps.

Oh, now I get it.

You are just a chickenshit mamas boy.

Pathetic.

Call me out and run away.

Useless.

Hey fuckface, I am 60.

And I will shut your fucking mouth if you bring it here.

But you won't, because you are a fucking useless pussy.

Live with that if you can.

Fucking POS.

You are now boring ya knobhead!

Thanks for the link, AC.

In case all this anchor tendon nonsense and cracks are confusing anyone, I'll add this observation ('opinion') best as I can recall by engineers from the old forums back in the days of spillway troubles:

1) The TOE edge (the downstream 'spillway' floor edge) of the gatehouse is slumping forward and rotating downhill when the reservoir is full. The internal stress on the vertical structural elements of the gatehouse are tremendous. That's what's stretching and busting the anchor tendons and cracking 5' thick structural concrete walls.

2) Previous high-pressure grouting under the head (upstream) edge and under the center of the gatehouse slabs in the 1960's and 70's made the problem worse. The grouting was necessary to mitigate water infiltration under the gatehouse through the hillside foundation rock, but expanding and filling the cracks put upward pressure under the headworks upstream edge. This 'helps' rotate (tip) the whole structure slightly forward when the reservoir is full from water pressure on the upstream side. Speculation is that this is the reason DWR engineers discontinued further grouting under the gatehouse and just accepted increased water infiltration/drainage under the gatehouse. Decades of erosion under the gatehouse toe made the whole problem worse.

3. Opening the gates at high reservoir levels relieves much of the upstream forces on the gatehouse and it will measurably rotate (tip) back towards the reservoir. Same thing when the reservoir is empty.

4. The headworks bottom slabs and piers are anchored to the hillside foundation bedrock by long rods cemented deep into the rock. Some of those anchors may have broken or become loose (cement deteriorating). Other anchors are still gripping sections of the bedrock, but that bedrock is known to be fractured and somewhat incompetent. There's a risk that sections of that rock are simply moving with the gatehouse when it tiles rather than anchoring it.

5. Worse yet, the anchoring and tipping problems are not uniform under the whole gatehouse structure. Slumping movement near the headworks left abutment (looking downstream) appears to be larger than along other sections, leading to the cracked pier above the trunion pin and anchors for Gate 8. This also contributed to the road deck slab spalling the edge of the pier it sits on. The headworks was built using two units - one of the left four gates and one for the right four gates. Racking of those structures during tipping may explain both pier 8 cracks and broken anchor tendons/gate racking at gate 4.

6. More evidence of this problem: the gigantic, bizarre concrete sarcophagus and wall. Supposedly to protect the main spillway from erosion if the e-spillway is used. Kind of like somewhere you would just build a simple, reinforced concrete wall. More skeptical engineers see this as a horrible hack to prop up the end of the e-spillway weir and headworks - FROM TILTING AND SLIDING DOWN THE HILL.

7. We're talking a fraction of a millimeter movement and microradians of tilt. The whole hill and dam deforms by those degrees when the reservoir is full and it wouldn't be unusual for large concrete structures built on it. It only becomes a problem when those structures are built using certain movement assumptions, and subsequent real-world performance later on are not measured or tracked. (Opinions vary on whether DWR does this at all or just keeps the results secret). Obvious future problems related to original design specification assumptions being exceeded later on are ignored - mostly because they are very costly and time-consuming to fix.

The above isn't MY technical assessment of the gatehouse. It's the collective assessment of some geezer engineers and geologists on forums that have been seeing these problems for decades. Other engineers disagree on the seriousness of the issues or suggest other underlying causes.


Measuring this kind of structural movement was difficult (but not impossible) 1960's technology. It's not, today. They can measure a millimeter of displacement and a fraction of a microradian of tilt on an active volcano with a few thousand dollars of equipment. DWR does not lack the technical means to do this, it's that they are paralyzed as far as any organizational desire to FIX anything they find regardless of measurement results, and they'll always use the quickest/cheapest fix when they ARE forced into action.

DWR isn't worried about 4" of displacement on a cracked 5' gatehouse structural pier. But they are outraged when pictures of it leak out and horrified dam engineers all over the world start discussing it and openly criticizing DWR and its engineering organizations. DWR *engineers* are not incompetent, stupid or immoral, but their bosses sure are. Must be a miserable place to work.

No problem for DWR though. DWR absolutely loves CEII restrictions allowing them to hide engineering problems like this affecting the public's safety. Unfortunate for DWR that the cracked pier photos got out, but those Goddam terrorist citizens will never be allowed to see the details on a host of other serious problems. Critical Electrical/Energy Infrastructure Information secrets. You don't NEED to know that secret stuff. And if you poke around too much, well... you'll end up under Sta. 23+00 where you can't cause any more trouble.

What is wrong with you? DISGUSTING! The baggage must be heavy.

Excellent dissertation.

I have known the gatehouse is 'racked' for years. I probably didn't know how to explain it, but you have done a wonderful job.

Must be a bot. Has called me out multiple times, but won't show. Great times LOL.

^ Obvious bot ^

859.52 AND NEW DATA COMING IN ANY MINUTE


-POPCORN-

859.60

OUTFLOWS DID MAKE UH DECENT JUMP FROM 21K TO 24K LAST HOUR.UH.

OUTFLOWS DROPPED TO 22,5K FROM 24K+

INFLOWS 40.5K

RIV REL BIG JUMP UP TO 22,382

Thanks for the deet crunchy ignore the assholes.

Good old peach tree mall. Thats the one that burned down and is now razed i think. The mall on the other side of the river in sutter cty is not safe either tho, if the dam dam turns to mud.

The nature of a dam like this is that one big f up at the top will grind the entire substructure, down to the last lump of mud. Like a runaway train or a nuke pile. Nothing at that point would stop total catastrophe.

KRUNCH IZ D-UH BEST. I TELL HIM NOT TO RE-POST THOSE ASSHOLEZ
WHEN ENGAGED WITH THEM..THAT'S WHAT THEY WANT. BUT, HE'S STILL
#1~ UH,CAPS.

Having drivin through honcut many times from clipper mills, I know his people. Strong and relentlessly obstinate. Love em.

Hey! Thanks again for the thread bumps. You are the real MVP.

IM GONNUH SEND HIM UH NICE FRUIT~BASKET....UH.

Many thanks. :)

At the end of the box of wine
this is about mass death, not personalities.

I think it finally got scraped recently to make room for a new COSTCO.

That old mall languished for decades.

Ground Zero for a lot of overlapping ley lines.

Peachy.

exactly...UH, AND SOME OF U.S. WILL CALL THOSE DEATHS 'MURDER'

Just can't ignore it. Like a train wreck. Dude is talkin shit and calling me out, but...nothing...

It would be so satisfying to punch that shit talking mouth, LOL.

But we are all adults here.

OK, THEY HAVE UH NOTICE SAYING THAT RELEASE SCHEDULE IS NOW @
22,500 BUT, OUTFLOWS HAVE JUMPED TO ALMOST 25K. NOW @ 859.72

RIV REL UP AGAIN TO 24,666-ISH UH. INFLOWS JUST UNDUH 40K CAPS

UH...IM NOT REALLY AN ADULT..;) BY ALL MEANS RESPOND TO THEM BUT DONT CLICK ON THEIR QUOTES. THEY WANT THAT. IT MAY BE UH,
THEIR 'ONLY' GOAL..?!?!?! IT KICKS THE GOOD DATA OFF SCREEN.UH