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Posted: 2/17/2017 2:10:10 AM EDT
[#1]
Quote History[youtube]https://www.youtube.com/watch?v=mlCiDEXuxxA[/youtube] |
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Posted: 2/17/2017 2:18:51 AM EDT
[#2]
Quote HistoryQuoted:
But the flow curves from the PDF show that the primary spillway is capable of +100k CFS down to ~850ft. http://www.ar15.com/media/mediaFiles/330018/6439c91eddf0be4edd2950162c3acba0-146954.JPG The only logical answer, that I'm aware of, is to reduce the erosion on the inflow side of the gates. Quote HistoryQuoted:
Quoted:
It's been stated in previous pages hat as the level drops, they're simply not capable of sustaining the same outflow rate. I'm just a dumb office geek, but I bet you can't make water flow out of a gate at the same rate if there's less pressure behind the water. But the flow curves from the PDF show that the primary spillway is capable of +100k CFS down to ~850ft. http://www.ar15.com/media/mediaFiles/330018/6439c91eddf0be4edd2950162c3acba0-146954.JPG The only logical answer, that I'm aware of, is to reduce the erosion on the inflow side of the gates. |
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Posted: 2/17/2017 2:22:33 AM EDT
[#3]
Quote HistoryQuoted:
I'm wondering how the rest of GD is doing, I've been living in here for the last week. Quote HistoryQuoted:
Quoted:
I spend 2 hours a day reading this thread. I'm wondering how the rest of GD is doing, I've been living in here for the last week. |
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Posted: 2/17/2017 2:26:42 AM EDT
[#4]
Quote HistoryCavitation damages the surface, it doesn't make room underneath a spillway for chunks of the spillway to fall into. Speaking of spillways, I just noticed something in this photo: Why are they piling up dirt in front of the spillway ramp at low water???? That's not in the design specs, At All. 
This is what happens when hippies take over. They just use everything until it breaks, then complain and go elsewhere to break shit. |
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Posted: 2/17/2017 2:27:45 AM EDT
[#5]
Quote HistoryQuoted:
If you think it isn't anchored in any way why has it not moved in 50 years? They have had 900 feet of water in it before. And it is exposed at the gatehouse side nearly to the foundations, There must be enormous forces on it near the bottom when no water is flowing over it providing downward force. I reiterate that they had quality specifications for the underlying bedrock at attachment points, something you are saying they could only get by removing the existing structure and excavating an unknown depth without coring the hillside. Somewhere, I believe in the Book of Dams, I read that keying the structure is actually the wrong way to build an Ogee weir. It applies forces to a prebuilt failure point even though logic says it would be ok. Once again, no need to tear out existing weir, it is fine until it is subjected to it's designed failure point, which I believe is 918 feet. Hopefully the onsite people do not make it impervious, I would not want to see Oroville Dam topped. I am not saying a temporary spillway at all, I am saying a true Auxiliary Spillway, connected to the lake at whatever depth the familiar Engineers would determine best. You could complete its construction in a year if you had your shit together and put in the new Gatehouse with everything ready for the dry season to excavate the connection to the lake similar to the existing spillway. I promise you others have this idea and are going to push it. The 1965 spillway race needs almost complete replacement, now that it has a monster hole it will require way more work than simply repairing it. Are they going to put up a batch plant in the spillway and just start conveying concrete and RipRap into the Oroville Spillway Canyon that was created? I don't think they are prepared to use the California concrete plants yearly output quota of into that hole. Yes. It is just sitting there. In the book of dams they said they grouted the rock and laid the emergency spillway on top of the grout. That's why the sectional drawing for the ogee weir says the height varies. It hasn't moved because they designed it to be heavy. They even described modeling the structure for buoyancy. You know, to see if it would move when submerged and with reservoir behind it and flow over it. It won't move because the base is wide and the structure is heavy. You don't key the structure because that puts one face in tension and the other in compression. Concrete/rock is great in compression but sucks in tension. There is no part of the dam or spillway that is designed to hold tension. Only compression. The emergency spillway is considered failed because of erosion on the downstream foundation, not because it moved. The nonlaminar flow and cavitation below the spillway can, and did erode the rock the spillway is on. It was also flowing under it according to people in this thread with connections to the dam. That erodes the foundation. Loss of foundation will allow the spillway itself to move. |
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Posted: 2/17/2017 2:44:07 AM EDT
[#6]
Quote HistoryQuoted:
Cavitation damages the surface, it doesn't make room underneath a spillway for chunks of the spillway to fall into. Speaking of spillways, I just noticed something in this photo: Why are they piling up dirt in front of the spillway ramp at low water???? That's not in the design specs, At All. https://s-media-cache-ak0.pinimg.com/originals/1a/dc/f8/1adcf8ea0b8554d8c2fa4e7c13bfd20e.jpg This is what happens when hippies take over. They just use everything until it breaks, then complain and go elsewhere to break shit. It's an optical illusion. The ramp is flat all the way out until it tapers off into the gully. The dirt is just light color from being graded/drivin on & thus looks "piled up". |
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Posted: 2/17/2017 3:00:14 AM EDT
[#7]
From: Design Standards No. 14Appurtenant Structures for Dams
(Spillways and Outlet Works) Design Standard Chapter 3: General Spillway Design Considerations 3.2.1 SpillwaysA spillway is a hydraulic structure that passes normal (operational) and/or flood flows in a manner that protects the structural integrity of the dam and/or dikes. Spillways are hydraulically sized to safely pass floods equal to or less than the IDF. The IDF will be equal to or less than the current critical Probable Maximum Flood (PMF).4 For more details and guidance about floods, refer to Chapter 2, “Hydrologic Considerations,” in this design standard. There are three classifications of spillways typically employed by Reclamation, which are based on frequency of use. They are explained in more detail in the following sections. 3.2.1.1 Service Spillway</font>A service spillway provides continuous, or frequent regulated, or staged releases5(controlled) or unregulated (uncontrolled) releases from a reservoir without significant damage to the dam, dike, or appurtenant structures due to releases up to and including the maximum design discharge. Service spillways are typically very robust, erosion-resistant structures consisting of mostly cast-in-place reinforced concrete and riprap channel protection. Some examples of service spillways are illustrated in figure 3.2.1.1-1. 3.2.1.2 Auxiliary Spillway[/size=4]An auxiliary spillway is infrequently used and may be a secondary spillway (augmenting a service spillway discharge capacity). During operation there could be some degree of structural damage or erosion to the auxiliary spillway due to releases up to and including the maximum design discharge. Auxiliary spillways may be less robust, erosion-resistant structures consisting of some cast-in-place reinforced concrete, riprap channel protection and/or unarmored excavated channels. Some examples of auxiliary spillways are illustrated in figure 3.2.1.2-1. 3.2.1.3 Emergency Spillway An emergency spillway is designed to provide additional protection against overtopping of a dam and/or dike and is intended for use under unusual or extreme conditions such as misoperation or malfunction of the service spillway or outlet works during very large, remote floods (such as the PMF), or other emergency conditions. As with auxiliary spillways, some degree of structural damage and/or erosion may be expected due to releases up to and including the maximum design discharge. Emergency spillways are the least robust, erosion-resistant structures consisting of some cast-in-place reinforced concrete, riprap channel protection, and/or unarmored excavated channels. Some examples of emergency spillways are illustrated in figure 3.2.1.3-1. |
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Posted: 2/17/2017 3:04:44 AM EDT
[#8]
Quote HistoryQuoted:
It's an optical illusion. The ramp is flat all the way out until it tapers off into the gully. The dirt is just light color from being graded/drivin on & thus looks "piled up". Quote HistoryQuoted:
Quoted:
Cavitation damages the surface, it doesn't make room underneath a spillway for chunks of the spillway to fall into. Speaking of spillways, I just noticed something in this photo: Why are they piling up dirt in front of the spillway ramp at low water???? That's not in the design specs, At All. https://s-media-cache-ak0.pinimg.com/originals/1a/dc/f8/1adcf8ea0b8554d8c2fa4e7c13bfd20e.jpg This is what happens when hippies take over. They just use everything until it breaks, then complain and go elsewhere to break shit. It's an optical illusion. The ramp is flat all the way out until it tapers off into the gully. The dirt is just light color from being graded/drivin on & thus looks "piled up". That's one hell of an optical illusion. Looks just like little piles of dirt. |
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Posted: 2/17/2017 3:08:51 AM EDT
[#9]
Quote HistoryQuoted:
It's an optical illusion. The ramp is flat all the way out until it tapers off into the gully. The dirt is just light color from being graded/drivin on & thus looks "piled up". Quote HistoryQuoted:
Quoted:
Cavitation damages the surface, it doesn't make room underneath a spillway for chunks of the spillway to fall into. Speaking of spillways, I just noticed something in this photo: Why are they piling up dirt in front of the spillway ramp at low water???? That's not in the design specs, At All. https://s-media-cache-ak0.pinimg.com/originals/1a/dc/f8/1adcf8ea0b8554d8c2fa4e7c13bfd20e.jpg This is what happens when hippies take over. They just use everything until it breaks, then complain and go elsewhere to break shit. It's an optical illusion. The ramp is flat all the way out until it tapers off into the gully. The dirt is just light color from being graded/drivin on & thus looks "piled up". I'm pretty sure there are big ass piles of dirt that look like dredged piles right next to the water line. Not sure what you're talking about. |
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Posted: 2/17/2017 3:14:58 AM EDT
[#10]
Quote HistoryQuoted:
Yes. It is just sitting there. In the book of dams they said they grouted the rock and laid the emergency spillway on top of the grout. That's why the sectional drawing for the ogee weir says the height varies. It hasn't moved because they designed it to be heavy. They even described modeling the structure for buoyancy. You know, to see if it would move when submerged and with reservoir behind it and flow over it. It won't move because the base is wide and the structure is heavy. You don't key the structure because that puts one face in tension and the other in compression. Concrete/rock is great in compression but sucks in tension. There is no part of the dam or spillway that is designed to hold tension. Only compression. The emergency spillway is considered failed because of erosion on the downstream foundation, not because it moved. The nonlaminar flow and cavitation below the spillway can, and did erode the rock the spillway is on. It was also flowing under it according to people in this thread with connections to the dam. That erodes the foundation. Loss of foundation will allow the spillway itself to move. That the structure is grouted to the footers is a method of anchoring Keying is bad, that is what I was trying to say to Master of Orion The Emergency Spillway has not failed, Read the definition from my post above. The weir is perfectly functional. The hillside experienced erosion, they expected that. They even list the causes of this semi disaster in Red Pixels in this case. |
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Posted: 2/17/2017 3:21:28 AM EDT
[#11]
Quote HistoryQuoted:
Found the official .gov source backing up what I was saying on page 6 that Emergency Spillways are generally "Single Use Items" requiring a lot of rebuilding if used. That's back before they were tossing around the idea of actually using it intentionally. Quote HistoryQuoted:
Found the official .gov source backing up what I was saying on page 6 that Emergency Spillways are generally "Single Use Items" requiring a lot of rebuilding if used. That's back before they were tossing around the idea of actually using it intentionally. Emergency spillways may be used to obtain a high degree of hydrologic safety with minimal additional cost. Because of their infrequent use, it is acceptable for them to sustain significant damage when used and they may be designed with lower structural standards than those used for auxiliary spillways.
An emergency spillway may be advisable to accommodate flows resulting from misoperation or malfunction of other spillways and outlet works. Generally, they are sized to accommodate a flood smaller than the IDF. The crest of an emergency spillway should be set above the normal maximum water surface (attained when accommodating the IDF) so it will not overflow as a result of reservoir setup and wave action. The design of an emergency spillway should be subject to the following limitations: • The structural integrity of the dam should not be jeopardized by spillway operation. Large conservation storage volumes should not be lost as a result of degradation of the crest during operation. The effects of a downstream flood resulting from uncontrolled release of reservoir storage should not be greater than the flood caused by the IDF without the dam. "Large conservation storage volumes should not be lost as a result of degradation of the [spillway] crest during operation." BINGO! Note the elevation and expanse of the area behind the eSpillway... |
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Posted: 2/17/2017 3:23:44 AM EDT
[#12]
Quote HistoryQuoted:
Someone needs to go back to chainsaw certification training.  no shit then again when it comes to the agencys in CA like CCC, calfire, forest service 9 out of 10 don't know a fucking thing about running a saw i was lucky enough to learn from long time loggers |
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Posted: 2/17/2017 3:28:55 AM EDT
[#13]
@Chokey
Quote History
What is the source of this image? The whole calculation hinges on these percentages of the previous storm peak flows, or rather more importantly, percentages of total deposit (listed there as 1.7 MAF). If you look at the source mentioned in the image (CNRFC), their 7 day forecast puts the rainfall at 7.5" over the lake, >14" over the Red Mountain and about 10" in between. The recorded rainfall between Feb 2 and Feb 9 at Oroville was 7". 
I get the qualitative argument that the upcoming storms are colder and melt less snow, but I have not seen a quantitative analysis of how much exactly does the snow melt contribute to the total deposit (MAF ending in the lake/reservoir). If the incoming water is say 50% snow melt, then yes, those 77% of the previous storm predictions make sense. But if snow melt contributes much less, say 10%, then the predictions that less water end up in the lake don't seem that credible to me. |
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Posted: 2/17/2017 3:29:09 AM EDT
[#14]
Quote HistoryQuoted:
"Large conservation storage volumes should not be lost as a result of degradation of the [spillway] crest during operation." BINGO! Note the elevation and expanse of the area behind the eSpillway... "Conservation Storage Volume" is what's below 800ft reservoir elevation. Above that is "Flood control storage" that they are treating as "Conservation Storage" which is a big part of why the dam (and other NorCal dams) are going to be flooding the entire area after the snowmelt. I can't find the link now, but all of them are above 90% capacity (w/Shasta at 98%), and the thaw hasn't even started. |
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Posted: 2/17/2017 3:32:31 AM EDT
[#15]
Quote HistoryQuoted:
@Chokey https://pbs.twimg.com/media/C40I5jDVcAAjYGZ.jpg What is the source of this image? The whole calculation hinges on these percentages of the previous storm peak flows, or rather more importantly, percentages of total deposit (listed there as 1.7 MAF). If you look at the source mentioned in the image (CNRFC), their 7 day forecast puts the rainfall at 7.5" over the lake, >14" over the Red Mountain and about 10" in between. The recorded rainfall between Feb 2 and Feb 9 at Oroville was 7". http://i337.photobucket.com/albums/n397/ghgfgfhfghshsg/Clipboard01.png I get the qualitative argument that the upcoming storms are colder and melt less snow, but I have not seen a quantitative analysis of how much exactly does the snow melt contribute to the total deposit (MAF ending in the lake/reservoir). If the incoming water is say 50% snow melt, then yes, those 77% of the previous storm predictions make sense. But if snow melt contributes much less, say 10%, then the predictions that less water end up in the lake don't seem that credible to me. Not to mention the "Green Bars" in Chokey's Image are assuming 95kcfs output putting the reservoir elevation below the spillway capable of that release amount, and then continuing on for days afterward. --ETA: Also ignoring they've reduced spillway output to 80kcfs, and are planning on reducing it even further. Looks like something a yes man drew to tell the masses everything is going to be OK. I too would like to know the source. |
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Posted: 2/17/2017 3:51:13 AM EDT
[#16]
Quote HistoryQuoted:
That's one hell of an optical illusion. Looks just like little piles of dirt. Quote HistoryQuoted:
Quoted:
Quoted:
Cavitation damages the surface, it doesn't make room underneath a spillway for chunks of the spillway to fall into. Speaking of spillways, I just noticed something in this photo: Why are they piling up dirt in front of the spillway ramp at low water???? That's not in the design specs, At All. https://s-media-cache-ak0.pinimg.com/originals/1a/dc/f8/1adcf8ea0b8554d8c2fa4e7c13bfd20e.jpg This is what happens when hippies take over. They just use everything until it breaks, then complain and go elsewhere to break shit. It's an optical illusion. The ramp is flat all the way out until it tapers off into the gully. The dirt is just light color from being graded/drivin on & thus looks "piled up". That's one hell of an optical illusion. Looks just like little piles of dirt. 
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Posted: 2/17/2017 4:09:19 AM EDT
[#17]
This was GDs biggest, and most education SAFE THREAD ever. And like every safe thread, in the end, it fails to deliver
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Posted: 2/17/2017 4:38:23 AM EDT
[#18]
Quote HistoryQuoted:
This was GDs biggest, and most education SAFE THREAD ever. And like every safe thread, in the end, it fails to deliver Only beginning.... |
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Posted: 2/17/2017 4:52:12 AM EDT
[#19]
Quote HistoryQuoted:
Without the complete quotes of who I was rebutting your rebuttal of me is confusing somewhat in agreement. That the structure is grouted to the footers is a method of anchoring Keying is bad, that is what I was trying to say to Master of Orion The Emergency Spillway has not failed, Read the definition from my post above. The weir is perfectly functional. The hillside experienced erosion, they expected that. They even list the causes of this semi disaster in Red Pixels in this case. Quote HistoryQuoted:
Quoted:
Yes. It is just sitting there. In the book of dams they said they grouted the rock and laid the emergency spillway on top of the grout. That's why the sectional drawing for the ogee weir says the height varies. It hasn't moved because they designed it to be heavy. They even described modeling the structure for buoyancy. You know, to see if it would move when submerged and with reservoir behind it and flow over it. It won't move because the base is wide and the structure is heavy. You don't key the structure because that puts one face in tension and the other in compression. Concrete/rock is great in compression but sucks in tension. There is no part of the dam or spillway that is designed to hold tension. Only compression. The emergency spillway is considered failed because of erosion on the downstream foundation, not because it moved. The nonlaminar flow and cavitation below the spillway can, and did erode the rock the spillway is on. It was also flowing under it according to people in this thread with connections to the dam. That erodes the foundation. Loss of foundation will allow the spillway itself to move. That the structure is grouted to the footers is a method of anchoring Keying is bad, that is what I was trying to say to Master of Orion The Emergency Spillway has not failed, Read the definition from my post above. The weir is perfectly functional. The hillside experienced erosion, they expected that. They even list the causes of this semi disaster in Red Pixels in this case. Where are the footers on the emergency spillway? I think the weir is just sitting on grade. |
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Posted: 2/17/2017 5:28:55 AM EDT
[#20]
Quote HistoryQuoted:
Where are the footers on the emergency spillway? I think the weir is just sitting on grade. Quote HistoryQuoted:
Quoted:
Quoted:
Yes. It is just sitting there. In the book of dams they said they grouted the rock and laid the emergency spillway on top of the grout. That's why the sectional drawing for the ogee weir says the height varies. It hasn't moved because they designed it to be heavy. They even described modeling the structure for buoyancy. You know, to see if it would move when submerged and with reservoir behind it and flow over it. It won't move because the base is wide and the structure is heavy. You don't key the structure because that puts one face in tension and the other in compression. Concrete/rock is great in compression but sucks in tension. There is no part of the dam or spillway that is designed to hold tension. Only compression. The emergency spillway is considered failed because of erosion on the downstream foundation, not because it moved. The nonlaminar flow and cavitation below the spillway can, and did erode the rock the spillway is on. It was also flowing under it according to people in this thread with connections to the dam. That erodes the foundation. Loss of foundation will allow the spillway itself to move. That the structure is grouted to the footers is a method of anchoring Keying is bad, that is what I was trying to say to Master of Orion The Emergency Spillway has not failed, Read the definition from my post above. The weir is perfectly functional. The hillside experienced erosion, they expected that. They even list the causes of this semi disaster in Red Pixels in this case. Where are the footers on the emergency spillway? I think the weir is just sitting on grade. 
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Posted: 2/17/2017 5:40:45 AM EDT
[#21]
Rainfall Projections Will Overtop Emergency Spillway by 13 Feet at Oroville Dam (313)
https://www.youtube.com/watch?v=CgBW09wd5so#t=85.365369 |
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Posted: 2/17/2017 5:43:11 AM EDT
[#22]
Quote HistoryQuoted:
This was GDs biggest, and most education SAFE THREAD ever. And like every safe thread, in the end, it fails to deliver 
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Posted: 2/17/2017 5:59:19 AM EDT
[#23]
Quote HistoryQuoted:
Look at the drawings posted several times in the last 50 pages. There are massive foundation footers under the lake edge 4ft H x 6ftW and the rear is listed a 4 ft H x 1/2 the width of the Weir, 15 feet or so. found it: http://i432.photobucket.com/albums/qq44/GonzoFrye/SectionBB_zps2h8rqgb8.png~original You are weirding me out because I do not see that at all. Maybe I should try and catch some sleep. |
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Posted: 2/17/2017 7:08:42 AM EDT
[#24]
Quote HistoryQuoted:
If you think it isn't anchored in any way why has it not moved in 50 years? They have had 900 feet of water in it before. And it is exposed at the gatehouse side nearly to the foundations, There must be enormous forces on it near the bottom when no water is flowing over it providing downward force. I reiterate that they had quality specifications for the underlying bedrock at attachment points, something you are saying they could only get by removing the existing structure and excavating an unknown depth without coring the hillside. Somewhere, I believe in the Book of Dams, I read that keying the structure is actually the wrong way to build an Ogee weir. It applies forces to a prebuilt failure point even though logic says it would be ok. Once again, no need to tear out existing weir, it is fine until it is subjected to it's designed failure point, which I believe is 918 feet. Hopefully the onsite people do not make it impervious, I would not want to see Oroville Dam topped. I am not saying a temporary spillway at all, I am saying a true Auxiliary Spillway, connected to the lake at whatever depth the familiar Engineers would determine best. You could complete its construction in a year if you had your shit together and put in the new Gatehouse with everything ready for the dry season to excavate the connection to the lake similar to the existing spillway. I promise you others have this idea and are going to push it. The 1965 spillway race needs almost complete replacement, now that it has a monster hole it will require way more work than simply repairing it. Are they going to put up a batch plant in the spillway and just start conveying concrete and RipRap into the Oroville Spillway Canyon that was created? I don't think they are prepared to use the California concrete plants yearly output quota of into that hole. Quote HistoryQuoted:
Quoted:
I disagree. It's not anchored in place in any way. Even if the rock underneath it is fine non fractured rock... it's just sitting there on top of it. So it can and would be shifted off and breached if it were used for any decent amount of water. It needs to go deep and get keyed into the good rock down there... and you aren't getting down there without removing the old one first. Somewhere, I believe in the Book of Dams, I read that keying the structure is actually the wrong way to build an Ogee weir. It applies forces to a prebuilt failure point even though logic says it would be ok. Once again, no need to tear out existing weir, it is fine until it is subjected to it's designed failure point, which I believe is 918 feet. Hopefully the onsite people do not make it impervious, I would not want to see Oroville Dam topped. I am not saying a temporary spillway at all, I am saying a true Auxiliary Spillway, connected to the lake at whatever depth the familiar Engineers would determine best. You could complete its construction in a year if you had your shit together and put in the new Gatehouse with everything ready for the dry season to excavate the connection to the lake similar to the existing spillway. I promise you others have this idea and are going to push it. The 1965 spillway race needs almost complete replacement, now that it has a monster hole it will require way more work than simply repairing it. Are they going to put up a batch plant in the spillway and just start conveying concrete and RipRap into the Oroville Spillway Canyon that was created? I don't think they are prepared to use the California concrete plants yearly output quota of into that hole. Did we do a primer on the forces actually acting in the emergency spillway yet? http://theconstructor.org/water-resources/forces-acting-on-a-dam-structure/5251/amp/ Or one on failure modes? https://www.slideshare.net/mobile/riteshac1/modes-of-failure-of-retaining-walls |
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Posted: 2/17/2017 7:55:15 AM EDT
[#25]
Quote HistoryQuoted:
Interesting information. Were you involved with the tear down and relocation? That Krupp bucket wheel excavator system ended up at the Centralia, WA coal mine where it was used for about 25 years or more for pre-stripping coal seams. It was used in 2 different pit areas as I recall. I started work at the mine when it was in the second area and spent many an hour keeping it maintained and operating. No, I worked for an engineering company as part of a team designing as-built modifications to the electrical system. |
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Posted: 2/17/2017 8:07:37 AM EDT
[#26]
Quote HistoryCan we add hydraulic and fluid dynamics, potential energy and kinetic energy to printer club?
Design of Spillway Aeration Devices to Prevent Spillway Damage Hydraulics of Stepped Chutes and Spillways |
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Posted: 2/17/2017 8:42:53 AM EDT
[#27]
Rock in the area of the dam was not excavated with explosives but by ripping. The main spillway was ripped out of the hill with Quad D9s using 10 foot ripper teeth with 4 foot extension. The thread on metabunk.org goes into the engineering much, much than this thread. The arrangement of the existing weir is due to where the consolidated layer they ripped down to were. The low weir is on top of a layer above the one the high weir sits on. You can see the change in profile in the below picture. Also be aware the current parking lot was part of a hill prior to construction. 
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Posted: 2/17/2017 8:45:22 AM EDT
[#28]
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I've found the real rough sandpaper is the most satisfying. Quote HistoryQuoted:
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Het Profryan, are you still itchy? Take showers that are as hot as you can stand. You won't believe how good that feels when that hot water hits the affected area. It is addictive. I've found the real rough sandpaper is the most satisfying. I've accidentally used Lava soap as my body soap in a shower once or twice when not fully awake. It has a similar effect.
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Posted: 2/17/2017 8:49:55 AM EDT
[#29]
Quote HistoryQuoted:
Speaking of spillways, I just noticed something in this photo: Why are they piling up dirt in front of the spillway ramp at low water???? That's not in the design specs, At All. Somebody already said it, dredging out that channel for boats to get to the ramps. 
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Posted: 2/17/2017 8:52:57 AM EDT
[#30]
Quote HistoryQuoted:
Cavitation damages the surface, it doesn't make room underneath a spillway for chunks of the spillway to fall into. Speaking of spillways, I just noticed something in this photo: Why are they piling up dirt in front of the spillway ramp at low water???? That's not in the design specs, At All. https://s-media-cache-ak0.pinimg.com/originals/1a/dc/f8/1adcf8ea0b8554d8c2fa4e7c13bfd20e.jpg This is what happens when hippies take over. They just use everything until it breaks, then complain and go elsewhere to break shit. Maybe the intent was to guide the inflow away from the main dam. Have it curve around the berm toward the gates and decelerate rather than have it possibly erode that original peninsula they cut through on the far side. Just a thought. |
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Posted: 2/17/2017 8:54:29 AM EDT
[#31]
Quote HistoryQuoted:
What about Louisiana inbreds that build below sea level?
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Posted: 2/17/2017 8:56:12 AM EDT
[#32]
The next rain shower is hitting the area right now. It looks like most of the storm will be south of Sacramento but there are still a couple heavier spots of rain hitting just north of Oroville. The rain is supposed to last all day.
The lake elevation is currently at 862. |
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Posted: 2/17/2017 9:00:39 AM EDT
[#33]
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Rainfall Projections Will Overtop Emergency Spillway by 13 Feet at Oroville Dam (313) https://www.youtube.com/watch?v=CgBW09wd5so#t=85.365369 Hmmm, that doesn't sound good. |
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Posted: 2/17/2017 9:20:54 AM EDT
[#34]
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Hmmm, that doesn't sound good. Quote HistoryQuoted:
Quoted:
Rainfall Projections Will Overtop Emergency Spillway by 13 Feet at Oroville Dam (313) https://www.youtube.com/watch?v=CgBW09wd5so#t=85.365369 Hmmm, that doesn't sound good. That guy sounds like a loon and the description of the video makes him sound like a snake oil salesman. He is pimping "make money off weather predictions" in his description as well as "rid your body of toxins". My guess is selling fear with fake weather predictions is a way to bump up your YouTube views and generate money. |
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Posted: 2/17/2017 9:22:11 AM EDT
[#35]
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I'm pretty sure there are big ass piles of dirt that look like dredged piles right next to the water line. Not sure what you're talking about. Quote HistoryQuoted:
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Cavitation damages the surface, it doesn't make room underneath a spillway for chunks of the spillway to fall into. Speaking of spillways, I just noticed something in this photo: Why are they piling up dirt in front of the spillway ramp at low water???? That's not in the design specs, At All. https://s-media-cache-ak0.pinimg.com/originals/1a/dc/f8/1adcf8ea0b8554d8c2fa4e7c13bfd20e.jpg This is what happens when hippies take over. They just use everything until it breaks, then complain and go elsewhere to break shit. It's an optical illusion. The ramp is flat all the way out until it tapers off into the gully. The dirt is just light color from being graded/drivin on & thus looks "piled up". I'm pretty sure there are big ass piles of dirt that look like dredged piles right next to the water line. Not sure what you're talking about. Looks like it might be topsoil. Back then, would they have put the topsoil off to the side so they could re-cover the ground at the end of the project? It's required these days I think. |
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Posted: 2/17/2017 9:24:09 AM EDT
[#36]
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This was GDs biggest, and most education SAFE THREAD ever. And like every safe thread, in the end, it fails to deliver It hasn't ended yet there bub, it just doesn't follow your precious instant gratification timeline. |
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Posted: 2/17/2017 9:27:08 AM EDT
[#37]
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It hasn't ended yet there bub, it just doesn't follow your precious instant gratification timeline. Yep slow motion.they need the spillway to hold up, the gates not to jam and a slowspring runoff. |
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Posted: 2/17/2017 9:34:02 AM EDT
[#38]
Maybe it has been said, but this seems like a really dumb design for a damn holding that much water.
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Posted: 2/17/2017 9:42:04 AM EDT
[#39]
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Maybe it has been said, but this seems like a really dumb design for a damn holding that much water. It was not designed to hold that much water continuously. They modified the use over the years and failed to maintain it as well. |
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Posted: 2/17/2017 9:48:35 AM EDT
[#41]
Here's some links that have been posted. Please feel free to add.
Sacramento Doppler Chapter 3: General Spillway Design Considerations California State Water Project Vol 3 Storage Facilities NOAA River Data Site DWR Data Exchange - Oroville Oroville Dam webcam DWR Photo Gallery |
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Posted: 2/17/2017 9:53:45 AM EDT
[#42]
Quote HistoryQuoted:
That guy sounds like a loon and the description of the video makes him sound like a snake oil salesman. He is pimping "make money off weather predictions" in his description as well as "rid your body of toxins". My guess is selling fear with fake weather predictions is a way to bump up your YouTube views and generate money. Quote HistoryQuoted:
Quoted:
Quoted:
Rainfall Projections Will Overtop Emergency Spillway by 13 Feet at Oroville Dam (313) https://www.youtube.com/watch?v=CgBW09wd5so#t=85.365369 Hmmm, that doesn't sound good. That guy sounds like a loon and the description of the video makes him sound like a snake oil salesman. He is pimping "make money off weather predictions" in his description as well as "rid your body of toxins". My guess is selling fear with fake weather predictions is a way to bump up your YouTube views and generate money. I got the same impression, only watched a minute of it before I stopped. Utter nonsense. |
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Posted: 2/17/2017 10:10:48 AM EDT
[#43]
Quote HistoryQuoted:
Here's some links that have been posted. Please feel free to add. Sacramento Doppler Chapter 3: General Spillway Design Considerations California State Water Project Vol 3 Storage Facilities NOAA River Data Site DWR Data Exchange - Oroville Oroville Dam webcam 
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Posted: 2/17/2017 10:26:07 AM EDT
[#44]
I wonder why the California system only updated the dam info hourly. The lake system I'm on updates every 15 minutes. I really like having that instant reading info.
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Posted: 2/17/2017 10:39:19 AM EDT
[#45]
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Rainfall Projections Will Overtop Emergency Spillway by 13 Feet at Oroville Dam (313) https://www.youtube.com/watch?v=CgBW09wd5so#t=85.365369 The math in that video is so bad even a 3rd grader would be laughing. |
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Posted: 2/17/2017 10:41:37 AM EDT
[#46]
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Then dose all the blisters with quality white vinegar. There is just a mild sting but the itching disappears almost immediately. I had poison ivy for 8 months last year. A place I bought was covered in it. I've beaten a lot of back but it is still everywhere in the brush. |
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Posted: 2/17/2017 10:57:26 AM EDT
[#47]
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Posted: 2/17/2017 11:02:15 AM EDT
[#48]
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I'd like to get back to my life. OP, could you update the title when the n.ext failure occurs or the level gets to 895 or so?
This is the best epic thread since Herby Curby! They dont make them like Herby Curby anymore. Instead we get 1000 pages of soros trolls that everyone quotes 5 times a page. So even if you ignore them all its still like sucking on Hillaries tampon every day. 
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Posted: 2/17/2017 11:03:06 AM EDT
[#49]
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The math in that video is so bad even a 3rd grader would be laughing. Quote HistoryQuoted:
Quoted:
Rainfall Projections Will Overtop Emergency Spillway by 13 Feet at Oroville Dam (313) https://www.youtube.com/watch?v=CgBW09wd5so#t=85.365369 The math in that video is so bad even a 3rd grader would be laughing. Ever notice how these gloom and doom scenarios always have a common thread? There is always some core belief that the government is holding back some sort of information, and the author is the only one privy to the "real" information. If the conspiracy of government withholding information falls through, the whole theory of destruction is out the window. |
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Posted: 2/17/2017 11:08:03 AM EDT
[#50]
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Ever notice how these gloom and doom scenarios always have a common thread? There is always some core belief that the government is holding back some sort of information, and the author is the only one privy to the "real" information. If the conspiracy of government withholding information falls through, the whole theory of destruction is out the window. I see your point, but I think that the other point made is that “one should NEVER underestimate the incompetence of government bureaucracy.” It is like watching a train wreck in slow motion. |
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