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Failed Oroville Dam Spillway designed by inexperienced grad student in the 1960s
next big future ^ | 1/11/2018 | brian wang

Posted on 01/11/2018 9:52:11 AM PST by bkopto

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To: Jonny7797
Geez, the blame is on his supervisors.

Indeed. Except they are long dead/retired.

21 posted on 01/11/2018 10:25:38 AM PST by Professional Engineer (This account has been banned or suspended.)
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To: Fred Hayek

.
>> “was there a time when one could get a California PE license without taking an exam?” <<

No!

Even a comity license requires a short exam, plus a valid license in another state.
.


22 posted on 01/11/2018 10:27:17 AM PST by editor-surveyor (Freepers: Not as smart as I'd hoped they'd be)
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To: bkopto

Living in Sacramento near the American River, just miles downstream from two other dams (Folsom and Nimbus) we watched this with quite a bit of interest... and one thing both my girlfriend and I noticed early on in the failure of the alternate spillway was there seemed to be NO rebar, i.e. steel reinforcement, in the concrete of the spillway. We watched carefully as the concrete broke away and never did we see any sign of steel rods or a grid or a even chicken wire to strengthen the concrete of either the floors or sides of that spillway.

Not once did any of the talking heads or the “experts” they brought on to discuss what was happening, mention a thing about the structural failure of how it was built. . . lacking that simple reinforcement, which, to our minds, would have likely prevented the failure.


23 posted on 01/11/2018 10:43:36 AM PST by Swordmaker (My pistol self-identifies as an iPad, so you must accept it in gun-free zones, you racist, bigot!)
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To: bkopto

First, it’s not the graduate student’s fault nearly as much as it is that of the administrators who let that student define such an important design - literally with peoples lives in the balance. Second, this practice of putting critical projects and legislative actions in the hands of inexperienced recent college and graduate school graduates is way too common in government, and many of our laws are designed and written by teams of very young and inexperienced people at the beginning stages of their careers.

This has to stop.


24 posted on 01/11/2018 10:44:44 AM PST by neverevergiveup
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To: Jonny7797

The work may have been done by a grad student, but a PE has stamped the plan and signed it.

This is not uncommon.


25 posted on 01/11/2018 10:45:18 AM PST by RinaseaofDs
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To: 2banana
A grad student that designed a dam spillway that lasted almost 60 FREAKING YEARS deserves an A++++++++

However, 2banana, it had never been used for its designed purpose in all those 60 years. When finally called on for that use, it DID fail.

26 posted on 01/11/2018 10:47:22 AM PST by Swordmaker (My pistol self-identifies as an iPad, so you must accept it in gun-free zones, you racist, bigot!)
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To: trebb
Skimped on the concrete because “less is more”...

We kept looking and never once saw a piece of REBAR in all that concrete. No one is looking to see who sold that inappropriate mix of concrete either. Someone made out like a bandit, likely because they were a bandit!

27 posted on 01/11/2018 10:49:55 AM PST by Swordmaker (My pistol self-identifies as an iPad, so you must accept it in gun-free zones, you racist, bigot!)
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To: Flick Lives

I suspect that there were a few engineers over the years who screamed bloody murder about it but it was all poopooed by the higher ups. I’ve seen stuff like that happen. Middle managers are demons from hell.


28 posted on 01/11/2018 10:54:47 AM PST by Seruzawa (TANSTAAFL!)
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To: bkopto

How many people on here have read about the building of the new Bay Bridge between Oakland and Treasure Island going toward San Francisco. . . and how CalTrans decided they could do it all in-house? They FIRED the one engineer who kept raising red flags about how all the test weld radiographs that were being sent from the Chinese company making the critical steel, were all IDENTICAL down to identical flaws, that the metallurgy reports did not jibe with the specs, that the bolts did not meet specs, and that nothing seemed to meet requirements that WOULD HAVE BEEN MET had CalTrans properly had an American Contractor build the bridge!

CalTrans swept everything reported wrong under the rug. . . enamored with their “modern” design bridge and using the Chinese company who had only built CRANES, that had NEVER built a bridge before, being the primary supplier. . . and routinely ignored their own engineer’s reports from on-site in China that the work was substandard.


29 posted on 01/11/2018 11:00:18 AM PST by Swordmaker (My pistol self-identifies as an iPad, so you must accept it in gun-free zones, you racist, bigot!)
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To: Seruzawa

I have seen too many times where when an engineer goes into management, he thinks he can forget all his engineering and just sling bovine scat. This was mostly in the NYC area.
Then you have managers who are strictly bean counters who think they know better than the engineers.
These are the worst kinds of managers, and all too common.


30 posted on 01/11/2018 11:02:59 AM PST by Fred Hayek (The Democratic Party is now the operational arm of the CPUSA)
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To: bkopto
Someone had to stamp the design. I can’t see someone fresh from grad school (failed?) having their PE Stamp. Plus it’s a common practice for their mentor to check and stamp the plans as well.

I did all the designs in our office. But my boss is the one that checked them and approved them.

Ed

31 posted on 01/11/2018 11:15:24 AM PST by husky ed (FOX NEWS ALERT "Generalissimo Francisco Franco is still dead" THIS HAS BEEN A FOX NEWS ALERT)
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To: 2banana; SunkenCiv; Ernest_at_the_Beach; SoothingDave; NicknamedBob
But there was very little WATER flowing over the spillway over those 50 years! A 99% dry spillway, with failures occurring EVERY TIME water did flow = Near-certainty of failure when emergency flow was needed and could not be secured.

There were many opportunities to intervene and prevent the incident, but the overall system of interconnected factors operated in a way that these opportunities were missed. Numerous human, organizational, and industry factors led to the physical factors not being recognized and properly addressed, and to the decision-making during the incident. The following are some of the key factors which are specific to DWR:
• The dam safety culture and program within DWR, although maturing rapidly and on the right path, was still relatively immature at the time of the incident and has been too reliant on regulators and the regulatory process.
• Like many other large dam owners, DWR has been somewhat overconfident and complacent regarding the integrity of its civil infrastructure and has tended to emphasize shorter-term operational considerations. Combined with cost pressures, this resulted in strained internal relationships and inadequate priority for dam safety.
• DWR has been a somewhat insular organization, which inhibited accessing industry knowledge and developing needed technical expertise.
• DWR’s ability to build the appropriate size, composition, and expertise of its technical staff involved in dam engineering and safety has been limited by bureaucratic constraints.

32 posted on 01/11/2018 11:18:35 AM PST by Robert A Cook PE (I can only donate monthly, but socialists' ABBCNNBCBS continue to lie every day!)
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To: bkopto

Hey! It last about 50 years? Not bad in this day and age. The follow-up repairs, inspections, etc., should have caught it long ago.


33 posted on 01/11/2018 11:34:52 AM PST by SgtHooper (If you remember the 60's, YOU WEREN'T THERE!)
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To: bkopto

Are we seeing 20/20 hindsight here?

As we all know Democrats/Liberals love blame as long as it’s in the direction they are pointing. California is, and has been run if not by an elected Democrat by a Democrat Deep State for about sixty years.

The point being the appearance current Democrats have found a scapegoat albeit nameless.


34 posted on 01/11/2018 11:56:08 AM PST by rockinqsranch (Conservatives seek the truth. Democrats seek the power to dictate what truth is.)
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To: bkopto

I could have designed the dam and emergency spill way a lot better than these guys, and I’m not even an engineer. Gee whiz. This is something you would expect from a third-world country.


35 posted on 01/11/2018 12:11:12 PM PST by semaj (U\)
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To: 2banana
"A grad student that designed a dam spillway that lasted almost 60 FREAKING YEARS..."

Not really, Californians were just lucky, and it seems their luck is finally running out.

36 posted on 01/11/2018 12:14:38 PM PST by semaj (U\)
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To: savedbygrace

Maybe he was related to William Mulholland.

https://www.kcet.org/history-society/the-flood-st-francis-dam-disaster-william-mulholland-and-the-casualties-of-la


37 posted on 01/11/2018 12:17:34 PM PST by Cecily
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To: editor-surveyor

I agree. It’s kind of like sex.
No matter how many playboys you see
How much porn you watch
It’s nothing compared to doing the horizontal mamba.


38 posted on 01/11/2018 5:44:56 PM PST by Keyhopper (Indians had bad immigration laws)
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To: Swordmaker

Yep - and the busted up pieces of the aprons were awful thin instead of having some heft - and maybe even footers to allow outside land erosion while maintaining integrity.


39 posted on 01/12/2018 4:17:57 AM PST by trebb (Where in the the hell has my country gone? I think Trump may give it back...)
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To: EarthResearcher333; KC Burke

Of interest.


40 posted on 01/12/2018 4:24:42 AM PST by mad_as_he$$
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