I just watched a Oro Dam Project film made by Periscope films and it was a 28 minute film of the methods they used for the Dam construction and how and where they managed their resources. It was very entertaining to see the methods they used in 1964.
Speaking of snow . . . . . the amount of snow at the various ski resorts in the Sierras are reporting over 500 inches!! That's right, 42 feet and higher. At Mammoth, the expectation is for skiing up until July 4th. The spring run-off will be a long one, but generally more easily controlled if these atmospheric rivers stay away.
This film brings back memories from junior high school and the 60's. After starting the film, our teacher, a WW2 vet, would move to the hallway and open an exterior door. He would prop a folding chair in the door and light up an unfiltered Lucky Strike. What a guy! You didn't mess with Mr. (fill in blank), because he was a decorated veteran who earned your respect before you were born. And frankly,, if he wants a smoke, or a pull from a hip flask, it was his right. Good times, good times. God bless America!!
blancolirio 👍👍👍Mr. Boettcher USN, Pacific Theater, WW2. Teacher and coach at HHS. Retired after 40 years of putting up with snotnosed delinquents like me. At age 80 he could still play 18 holes of golf, AND keep up with the "pups", (his term), at the 19th Hole!! A life well lived, and I salute him and all the other members of the Greatest Generation!!
@@BrainScramblies I can also build a power plant, oil refinery, water or wastewater plant, build a house, pave a road, fall a tree, set up a crane pick, pass a weld test, field dress a deer, tie a fly on a line and catch dinner, change a diaper, give CPR, chase monsters out of closets or from under beds, teach a kid to pitch a curve ball, and give a eulogy at a funeral. And play with computers.
Hi Juan. Beautiful picture of the snow in your yard. My mother lived in Marysville when they had that floods there and told us kids about it. I have seen the videos of the making of the dam at the visitors center on several occasions. It's always amazing to watch each step of them building it. Thank you for sharing this part of history with us. I like the Godzilla! Lol!
This old film is gold. Thanks for sharing. I’m in Tulsa and we are currently experiencing severe flooding from the Arkansas River - I am thankful that back in the 60’s the Keystone Dam and Levee system was put in place and in the 80s significant storm waterway improvements were made in my area of town. It could be so much worse!
Thanks for the great reporting on this subject, I live near Saylorville dam in Iowa which is a much smaller earthen dam than Oroville. It experienced the same kind of emergency overflow 3 times ..so this subject is very interesting to me. Thankfully our backup dam had a large cement slab below it which stopped it from eroding close to the spillway. However it played havoc on its path to the river after that. They ended up building an extendable wall that could add 4 feet I think? to the top of the emergency spillway when needed. The Emergency spillway structure is so far above normal water levels it seems impossible it ever overflowed. The first time it overflowed they would let you get close enough to see it from a roped off area. You could feel the power of the water in the ground and air.
Blanco/Juan, i Love the body of work that you have put together on The Dam, and as a 1 time visitor to Oroville while my son was Attending Northwest Lineman College, and him only living about 50 yds. From The Bank of The Feather River while he was there for 4 months i came to understand just how at risk some of the citizens of Oroville would've been. Keep up The Great work that you do. And thanks for sharing with us your Family,and aviator life. Tim in Phoenix.
Thanks. Hubs's Dad worked on Bullard's Bar when we got married. He was a cement mixer and could not be gone for one day for fear the cement would be different. Neighbor boy was one of the ones chopper rescued...I heard without clothes. Hubs family lost all Christmas presents, but they were able to take the floor of the house up and take it to a kiln and dry it. I was 8 and I remember mud puddles that had a layer of snow on top and you could write your name in the slush and it would freeze.
I appreciate your time and insight into the Oroville Damn issue. I live in the lower Tn River valley just up river from the Chickamauga damn (that's 5m up river of Chattanooga). We enjoy the tireless efforts of TVA but we struggle with the rain amounts your dealing with on a yearly basis. Please continue with the most excellent reporting.
From junior high through high school in Yuba City, my best friend's father was a welder and locomotive mechanic on the Oroville and then Bullards Bar dams. RIP Shorty Melton.
The snow makes a pretty backdrop. I'm here in Ontario Canada where we are experiencing unseasonal Springlike weather. It's February and we're supposed to be knee deep in snow and blown away by frigid winds. Go figure. You're doing a great job keeping us up-to-date and educated. Much appreciated Juan. Keep safe. Thanks. Charlotte
Thanks Juan, I been following you primarily for your ADV motorcycle videos, but the coverage of Oroville is better then anything the news media puts out. BTW the archival footage was great, Gov. Ronald Reagan, the golden years of California.
Living on a flood plain it's not "if the river will flood", but rather when the river floods. Getting flooded out is an eventuality. Set the levees back and elevate the ground that structures are built on
thanks Juan. I found this on periscope films site History 53054. Made by the manufacture.. even shows scale models step by step of the Oroville dam. It is 24 min. but well worth watching. leah rodda
Hi Juan. Great coverage and I love that Luscombe. Hey, get us some good pix of the busted spillway when they shut the water off. I am really curious to see what that look like. Can you get anything from above the TFR? B.Greenwood UAL (ret)
I have a feeling Oroville Dam and the surrounding areas are going see a huge spike in tourism this summer. Hopefully a big boost for the local economy............they deserve it.
"tamed" has some topical irony. It was interesting to see the 1955 flood footage; there must have been a lot of public demand for Oroville dam to be constructed. The whole California Water Project is pretty awesome; lots of superlative construction records broken on this system we hear little about.
During construction of the main spillway dozers were used to rip the bedrock. That for one says the rock was not very hard. Some area's were undercut they then filled below subgrade excavation with concrete. They also discovered rock that would crumble when dried out and re wetted. The few roads you see on the dam were used for a Dragline to excavate the ripped material out of the spillway. The Red tinted material you see on the dam and near the damaged spillway is rock that has crumbled into dust. Looking on Google earth near the first two towers looking upward is a area of concern you can see rock decomposing and also Iron oxide staining on the roadway from water traveling thru this seam of rock. A close look at the bedrock of the dam you can see the alternating bands of volcanic rock. The Emergency spillway foundation was undercut 30 feet due to the bedrock was unsuitable to build on. The also found a fault line on the inlet side of the dam about 100 feet from the spillway structure which was undercut and filled back in. There are to inlet structures below the spillway that are not used. After tunneling they discovered the rock unsuitable for use. This could be the same seam you can see above the two towers i made mention here.
Juan, if you have the opportunity to find out, I'd love to know how the various data at cdec.water.ca.gov/cgi-progs/queryF?s=ORO is measured or obtained. For example, how are inflows and outflows measured? Especially outflows when the emergency spillway was active.
I watch a lot of your videos on the Oroville Dam. How are you so knowledgeable about how everything works? As a pilot, how do you have time to research? Sorry...inquiring minds want to know? I think you're great at what you do, by the way.
Is there any lingering risk from the erosion that has occurred off to the side of the main spillway? Or, do they not know yet? If there is risk, is this a risk to the dam rather than only to the spillway itself?
is the treat over???? im interested about this but for some reason i cant find anything real/current on whats going on lot of people putting out false info you seemed to know your stuff and did your research
I've been avidly following your coverage of the dam situation, which has been excellent! I just saw a video supposedly from today, Friday the 24th, showing water flowing over the Emergency Spillway again! Is this for real? later....just found the latest news from The Mercury News which said as of yesterday "As of 4 p.m. Thursday, the water level was at the 850.58-foot elevation, more than 50 feet below the problematic emergency spillway’s lip." So apparently that helicopter video was what would be called "fake news". Can't people just tell the truth?!!
Yes, there are many youtube channels posting clickbait with sky-is-falling conspiracy end-of-days titles attached to outdated or unrelated video. You can check levels yourself at cdec.water.ca.gov/cgi-progs/queryF?s=ORO, and crosscheck that on the webcam: www.parks.ca.gov/?page_id=29411
Interesting how meticulous attention was paid to inspections during construction, but inspecting the integrity of the spillway became passe and unimportant.
Wet spots and new grass in the same places when the dam was new,,, so that "lift"(fill layer) at that hight in the dam was a problem back then. "It's a spring" yea right,,,,,,,
Posting some resources: Oroville water levels and flows: cdec.water.ca.gov/cgi-progs/queryF?s=ORO Project info: www.water.ca.gov/swp/facilities/Oroville/LakeDam.cfm DWR photos: pixel-ca-dwr.photoshelter.com/galleries/C0000OxvlgXg3yfg/G00003YCcmDTx48Y/Oroville-Spillway-Incident DWR youtube: ruclips.net/user/calwatervideos (Some good drone footage.) Webcam: www.parks.ca.gov/?page_id=29411 The hole in the main spillway: photos.smugmug.com/Spillway-Crumbles-Thursday-2-9-2017/i-Q9445pJ/0/XL/SpillwayThursbh21-2-XL.jpg Men in hole (for scale) at earlier stage: res.cloudinary.com/engineering-com/image/upload/v1486729872/tips/oro2_h6elcy.jpg. Spillway is 160ft wide, some sources say, and 3000ft long. Oroville Dam relicense application docs, lots of good info, especially Exhibit A: www.water.ca.gov/orovillerelicensing/app_ferc_license_2005.cfm Engineering reports, see especially the flood management study: www.water.ca.gov/orovillerelicensing/wg-reports_EO.cfm, with data about the catchment area into Oroville, modeling assumptions etc. The 2005 motion to address the emergency spillway: yubariver.org/wp-content/uploads/2017/02/10172005_FOR-Sierra-Club-SYRCL_Oroville-Dam-Joint-Intervention.pdf Eng-Tips discussion thread: www.eng-tips.com/viewthread.cfm?qid=420883
VancouverCanucksRock: Think of it like a pot hole or fisher cracks in high mountains. The Sun Bakes it; The Water Gets Into the Cracks; The Cold Shrinks the Crack; and the Sun Bakes it Apart again later. Then add 60k^3ft/sec of pounding cavitation and some rock'in and roll'in, and things will just come apart eventually. If your lucky its a small repairable pot hole, but this hit the mega super blown out pot hole size award.
Joe Casarez Yes, so, much like the WTC, it was rigged/set up for failure. How come we have not seen close up shots of that hole? I mean from the guys climbing inside, etc?
+VancouverCanucksRock: Check out the 1989 Loma Prieta California Earthquake. A good shaker is more likely a Dam concrete factor in California. On that day I drove to SF for a meeting; Followed my manager across the Bay Bridge; Climbed on a roof in Emeryville to work on some commercial equipment; while, my manager went back across the Bay Bridge; Got back in my van and the hole F350 van started rocking violently 15 inches up & down kitty cross corner to corner. 2 min in I was 45 ft away as I watched, a 9 story lunched all of one side of its glass 3 ft off of all 9 stories and it all landed in front of me. If I had been 15 minute early I would have been on the 5 mile stretch of the Oakland Nimitz Freeway or the SF Bay Bridge, when they each collapsed. As for the Orville Dam pic's: They need to stop the spillway flow; they don't have a view; & it's probably not safe; Loose debrea; Muddy; Wet; Unstable. That's my guess.
Impervious clay material shown at 4minutes 5 seconds to 4 minutes 20 seconds...and being inspected, This debunks Scott Cahills claim that there is no impervious clay core and it is all just gravel... gravel alone would not hold water more than a tenth of a second, the impervious clay core so far has lasted for 50 years.
It's unfortunate that immediately after the flood of 1955 the State didn't condemn the flooded downtowns of Marysville and Yuba City. Set back the levees from the river and require any structures on the flood plain be elevated above flood level.
Build the spillway... and make LA pay. Just joking. Maybe they can leave the main spillway as is with a little work on the lip at the halfway point? Of course, however much they fix the main, it is now obvious they need new operable gate second system somewhere up there. Looking at youtube of Teton dam, nobody wants a flood.
I just watched a Oro Dam Project film made by Periscope films and it was a 28 minute film of the methods they used for the Dam construction and how and where they managed their resources. It was very entertaining to see the methods they used in 1964.
Bob Ferranti yes!
Speaking of snow . . . . . the amount of snow at the various ski resorts in the Sierras are reporting over 500 inches!! That's right, 42 feet and higher. At Mammoth, the expectation is for skiing up until July 4th. The spring run-off will be a long one, but generally more easily controlled if these atmospheric rivers stay away.
This film brings back memories from junior high school and the 60's. After starting the film, our teacher, a WW2 vet, would move to the hallway and open an exterior door. He would prop a folding chair in the door and light up an unfiltered Lucky Strike. What a guy! You didn't mess with Mr. (fill in blank), because he was a decorated veteran who earned your respect before you were born. And frankly,, if he wants a smoke, or a pull from a hip flask, it was his right. Good times, good times. God bless America!!
Yes! Mr. Barry USMC WWII, Korea- NUHS History teacher 1978
blancolirio 👍👍👍Mr. Boettcher USN, Pacific Theater, WW2. Teacher and coach at HHS. Retired after 40 years of putting up with snotnosed delinquents like me. At age 80 he could still play 18 holes of golf, AND keep up with the "pups", (his term), at the 19th Hole!! A life well lived, and I salute him and all the other members of the Greatest Generation!!
@@BrainScramblies I can also build a power plant, oil refinery, water or wastewater plant, build a house, pave a road, fall a tree, set up a crane pick, pass a weld test, field dress a deer, tie a fly on a line and catch dinner, change a diaper, give CPR, chase monsters out of closets or from under beds, teach a kid to pitch a curve ball, and give a eulogy at a funeral.
And play with computers.
Hi Juan. Beautiful picture of the snow in your yard. My mother lived in Marysville when they had that floods there and told us kids about it. I have seen the videos of the making of the dam at the visitors center on several occasions. It's always amazing to watch each step of them building it. Thank you for sharing this part of history with us. I like the Godzilla! Lol!
I'm in England and am grateful for your informed and interesting comment on this event.
This old film is gold. Thanks for sharing. I’m in Tulsa and we are currently experiencing severe flooding from the Arkansas River - I am thankful that back in the 60’s the Keystone Dam and Levee system was put in place and in the 80s significant storm waterway improvements were made in my area of town. It could be so much worse!
Thanks for the great reporting on this subject, I live near Saylorville dam in Iowa which is a much smaller earthen dam than Oroville. It experienced the same kind of emergency overflow 3 times ..so this subject is very interesting to me. Thankfully our backup dam had a large cement slab below it which stopped it from eroding close to the spillway. However it played havoc on its path to the river after that. They ended up building an extendable wall that could add 4 feet I think? to the top of the emergency spillway when needed. The Emergency spillway structure is so far above normal water levels it seems impossible it ever overflowed. The first time it overflowed they would let you get close enough to see it from a roped off area. You could feel the power of the water in the ground and air.
Blanco/Juan, i Love the body of work that you have put together on The Dam, and as a 1 time visitor to Oroville while my son was Attending Northwest Lineman College, and him only living about 50 yds. From The Bank of The Feather River while he was there for 4 months i came to understand just how at risk some of the citizens of Oroville would've been.
Keep up The Great work that you do. And thanks for sharing with us your Family,and aviator life.
Tim in Phoenix.
Thanks. Hubs's Dad worked on Bullard's Bar when we got married. He was a cement mixer and could not be gone for one day for fear the cement would be different. Neighbor boy was one of the ones chopper rescued...I heard without clothes. Hubs family lost all Christmas presents, but they were able to take the floor of the house up and take it to a kiln and dry it. I was 8 and I remember mud puddles that had a layer of snow on top and you could write your name in the slush and it would freeze.
I appreciate your time and insight into the Oroville Damn issue. I live in the lower Tn River valley just up river from the Chickamauga damn (that's 5m up river of Chattanooga). We enjoy the tireless efforts of TVA but we struggle with the rain amounts your dealing with on a yearly basis. Please continue with the most excellent reporting.
From junior high through high school in Yuba City, my best friend's father was a welder and locomotive mechanic on the Oroville and then Bullards Bar dams. RIP Shorty Melton.
The snow makes a pretty backdrop. I'm here in Ontario Canada where we are experiencing unseasonal Springlike weather. It's February and we're supposed to be knee deep in snow and blown away by frigid winds. Go figure.
You're doing a great job keeping us up-to-date and educated. Much appreciated Juan. Keep safe. Thanks. Charlotte
Thanks Juan, I been following you primarily for your ADV motorcycle videos, but the coverage of Oroville is better then anything the news media puts out. BTW the archival footage was great, Gov. Ronald Reagan, the golden years of California.
Living on a flood plain it's not "if the river will flood", but rather when the river floods. Getting flooded out is an eventuality. Set the levees back and elevate the ground that structures are built on
It looks like everything is under control now. You did a great job of keeping everybody updated Juan, we appreciate it.
Hopefully your videos help people see the centrality of reliable infrastructure to our big cities and urban communities. Love your work!
The spillway picture with Godzilla. LOL
thanks Juan. I found this on periscope films site History 53054. Made by the manufacture.. even shows scale models step by step of the Oroville dam. It is 24 min. but well worth watching. leah rodda
Excellent job keeping us in the loop during this.
I am now an expert on the Oroville Dam construction, it's destruction and finally it's re-construction. And it's all thanks to Juan!
Robert Bennett There ya go!
Great work on the updates and this great lesson. Thanks!!!!
Best overall coverage of the Oroville Dam!
thanks for all your knowledgeable info! you have a great talent for explaining things in a pleasing easy to listen to manner.
Hi Juan. Great coverage and I love that Luscombe. Hey, get us some good pix of the busted spillway when they shut the water off. I am really curious to see what that look like. Can you get anything from above the TFR? B.Greenwood UAL (ret)
Why is there no 11:00 am Action news on the Oroville Dam spillway? 02-23-2017 why is the Spillway spitting up red mud again ? What's going on?
I have a feeling Oroville Dam and the surrounding areas are going see a huge spike in tourism this summer. Hopefully a big boost for the local economy............they deserve it.
Not sure what you mean.
Gold panning!!
I'll go in the tour guide buisness...lol
the mayor was on TV talking about increases
Driveman . . . . to confirm your comment: __ www.latimes.com/local/lanow/la-me-ln-oroville-dam-recovery-20170221-story.html
Thank you again. Great video. Looking forward to more.
"tamed" has some topical irony.
It was interesting to see the 1955 flood footage; there must have been a lot of public demand for Oroville dam to be constructed.
The whole California Water Project is pretty awesome; lots of superlative construction records broken on this system we hear little about.
WOW!!!
Thanks for sharing these historical videos!!!
During construction of the main spillway dozers were used to rip the bedrock. That for one says the rock was not very hard. Some area's were undercut they then filled below subgrade excavation with concrete. They also discovered rock that would crumble when dried out and re wetted. The few roads you see on the dam were used for a Dragline to excavate the ripped material out of the spillway. The Red tinted material you see on the dam and near the damaged spillway is rock that has crumbled into dust. Looking on Google earth near the first two towers looking upward is a area of concern you can see rock decomposing and also Iron oxide staining on the roadway from water traveling thru this seam of rock. A close look at the bedrock of the dam you can see the alternating bands of volcanic rock. The Emergency spillway foundation was undercut 30 feet due to the bedrock was unsuitable to build on. The also found a fault line on the inlet side of the dam about 100 feet from the spillway structure which was undercut and filled back in. There are to inlet structures below the spillway that are not used. After tunneling they discovered the rock unsuitable for use. This could be the same seam you can see above the two towers i made mention here.
Love the old footage. Thanks
Juan, if you have the opportunity to find out, I'd love to know how the various data at cdec.water.ca.gov/cgi-progs/queryF?s=ORO is measured or obtained. For example, how are inflows and outflows measured? Especially outflows when the emergency spillway was active.
Graham Wideman yes, me too. Good idea.
I watch a lot of your videos on the Oroville Dam. How are you so knowledgeable about how everything works? As a pilot, how do you have time to research? Sorry...inquiring minds want to know? I think you're great at what you do, by the way.
another excellent video thank you Juan
Is there rebar in the concrete of the Oroville Dam and spillway/s? None seen in photos/video. Thank you.
Someone had mentioned a couple of days ago that there was rebar in the concrete of the spillway, but not enough of it by today's standards.
Is there any way to expand the currant dam? fill a near by low land or valley?
Thanks for the updates.
Thank You, good job, 🌻🌻🌻
There is still a drive-in movie theater in Mansfield Ohio!!! Was two of em 2 years ago.
marysville was swamped. in 1955, nice job juan
my dear maidu, i suffer for u and all those 1st salmon ceremonys u held...thank u taste of maidu for persisting...we need u!
Thanks for the videos. How/where do they measure the reservoir inflow?
bonemaster J good question...I don't know...
I think this is the link to the sensor stations: __ cdec.water.ca.gov/cdecstation2/
Does the inflow total = sum of Miocene, Jarbo Gap, Merrimac, Brush Creek, and Ponderosa sensors (and possibly Forbestown)? Or are there more?
Awesome.......Built back when ships where wooden and men where steel.
Thank you what a lovely garden
Love these old vids, Making America Great Again!!
Will there be late Spring consequences of the snowfall melts to Oroville and surrounding dams?
were in the Adirondack Mountains and having a heat wave. 67 degree's record breaking temps this week.
I am new to you and your channel. Are you willing to give us some info about your background in one of your ipcoming bideos? thanks
HappyQuailsFarm will do thanks
in the earliest shots there was a bridge in the background. what happened to it?
Great footage! Thanks!!!
Is there any lingering risk from the erosion that has occurred off to the side of the main spillway? Or, do they not know yet? If there is risk, is this a risk to the dam rather than only to the spillway itself?
Until they are able to reduce or stop the flow down the main spillway, they will not be able to get close enough to make a thorough inspection.
Wait bro...where u at that has snow? Thought it was all gone?
is the treat over???? im interested about this but for some reason i cant find anything real/current on whats going on lot of people putting out false info you seemed to know your stuff and did your research
Brian Berthold I'll do an update this week when I get some new data and progress to date. Thanks for tuning in Brian!
I've been avidly following your coverage of the dam situation, which has been excellent! I just saw a video supposedly from today, Friday the 24th, showing water flowing over the Emergency Spillway again! Is this for real? later....just found the latest news from The Mercury News which said as of yesterday "As of 4 p.m. Thursday, the water level was at the 850.58-foot elevation,
more than 50 feet below the problematic emergency spillway’s lip." So apparently that helicopter video was what would be called "fake news". Can't people just tell the truth?!!
Yes, there are many youtube channels posting clickbait with sky-is-falling conspiracy end-of-days titles attached to outdated or unrelated video. You can check levels yourself at cdec.water.ca.gov/cgi-progs/queryF?s=ORO, and crosscheck that on the webcam: www.parks.ca.gov/?page_id=29411
Thanks so much, Graham! I appreciate your taking time to reply! Will check these out for sure!
Nice coniferous winter wonder land !
( at the start )
Interesting how meticulous attention was paid to inspections during construction, but inspecting the integrity of the spillway became passe and unimportant.
id like to know if the old rail line is still under the water
dont know
Thanks Peter!
Oh my, is that snow?
they could have easily put in a second power plant in that dam to double the output
great report thank you!
Wet spots and new grass in the same places when the dam was new,,, so that "lift"(fill layer) at that hight in the dam was a problem back then. "It's a spring" yea right,,,,,,,
Where is the Hardhat ??
:-)
Just saw where Shasta opened it's spillway gates, first time in 20 yrs. Lots of water all over Ca.
yupyup1562 yes!
Thank you from your honest reporting,. I think that your reports are based on fact, not some airy fairy conjecture of some reporter. regards bruce
Anybody following the issue at the SHASTA DAM?
7:22 for those who have seen the former
Posting some resources:
Oroville water levels and flows: cdec.water.ca.gov/cgi-progs/queryF?s=ORO
Project info: www.water.ca.gov/swp/facilities/Oroville/LakeDam.cfm
DWR photos: pixel-ca-dwr.photoshelter.com/galleries/C0000OxvlgXg3yfg/G00003YCcmDTx48Y/Oroville-Spillway-Incident
DWR youtube: ruclips.net/user/calwatervideos (Some good drone footage.)
Webcam: www.parks.ca.gov/?page_id=29411
The hole in the main spillway: photos.smugmug.com/Spillway-Crumbles-Thursday-2-9-2017/i-Q9445pJ/0/XL/SpillwayThursbh21-2-XL.jpg
Men in hole (for scale) at earlier stage: res.cloudinary.com/engineering-com/image/upload/v1486729872/tips/oro2_h6elcy.jpg. Spillway is 160ft wide, some sources say, and 3000ft long.
Oroville Dam relicense application docs, lots of good info, especially Exhibit A: www.water.ca.gov/orovillerelicensing/app_ferc_license_2005.cfm
Engineering reports, see especially the flood management study: www.water.ca.gov/orovillerelicensing/wg-reports_EO.cfm, with data about the catchment area into Oroville, modeling assumptions etc.
The 2005 motion to address the emergency spillway: yubariver.org/wp-content/uploads/2017/02/10172005_FOR-Sierra-Club-SYRCL_Oroville-Dam-Joint-Intervention.pdf
Eng-Tips discussion thread: www.eng-tips.com/viewthread.cfm?qid=420883
Saved him. Sans pants :/
History shows again and again how nature points out the follies of man. BOC
9,111 Subscribers. Water Can't erode Concrete Spillways. Inside Job!
VancouverCanucksRock no that's never been proven
VancouverCanucksRock: Think of it like a pot hole or fisher cracks in high mountains. The Sun Bakes it; The Water Gets Into the Cracks; The Cold Shrinks the Crack; and the Sun Bakes it Apart again later. Then add 60k^3ft/sec of pounding cavitation and some rock'in and roll'in, and things will just come apart eventually. If your lucky its a small repairable pot hole, but this hit the mega super blown out pot hole size award.
Joe Casarez Yes, so, much like the WTC, it was rigged/set up for failure. How come we have not seen close up shots of that hole? I mean from the guys climbing inside, etc?
pixel-ca-dwr.photoshelter.com/galleries/C0000OxvlgXg3yfg/G00003YCcmDTx48Y/I0000kN9PORvuykE/KG-oro-spillway-damage-10060-jpg
res.cloudinary.com/engineering-com/image/upload/v1486729872/tips/oro2_h6elcy.jpg
+VancouverCanucksRock: Check out the 1989 Loma Prieta California Earthquake. A good shaker is more likely a Dam concrete factor in California. On that day I drove to SF for a meeting; Followed my manager across the Bay Bridge; Climbed on a roof in Emeryville to work on some commercial equipment; while, my manager went back across the Bay Bridge; Got back in my van and the hole F350 van started rocking violently 15 inches up & down kitty cross corner to corner. 2 min in I was 45 ft away as I watched, a 9 story lunched all of one side of its glass 3 ft off of all 9 stories and it all landed in front of me. If I had been 15 minute early I would have been on the 5 mile stretch of the Oakland Nimitz Freeway or the SF Bay Bridge, when they each collapsed. As for the Orville Dam pic's: They need to stop the spillway flow; they don't have a view; & it's probably not safe; Loose debrea; Muddy; Wet; Unstable. That's my guess.
5:59 Uh oh, that doesn't sound right...
Impervious clay material shown at 4minutes 5 seconds to 4 minutes 20 seconds...and being inspected, This debunks Scott Cahills claim that there is no impervious clay core and it is all just gravel... gravel alone would not hold water more than a tenth of a second, the impervious clay core so far has lasted for 50 years.
I wonder if they ignored any safety factors? After all, it was the pre-environmental, era.
It's unfortunate that immediately after the flood of 1955 the State didn't condemn the flooded downtowns of Marysville and Yuba City. Set back the levees from the river and require any structures on the flood plain be elevated above flood level.
I don't know how to send links, so I just copied the nerd stats and figure you would know
Build the spillway... and make LA pay. Just joking. Maybe they can leave the main spillway as is with a little work on the lip at the halfway point? Of course, however much they fix the main, it is now obvious they need new operable gate second system somewhere up there. Looking at youtube of Teton dam, nobody wants a flood.
You do a great diservice when you try and down play the ongoing seriousness of this event!'
And you do a great disservice to Juan by being dumb... Fearmongering got you nowhere lol...