Dampocalypse - Oroville Dam Educational and Breaking News Thread of 2017. No fresh pix from op :-( - Page 282

[ARCHIVED THREAD] - Dampocalypse - Oroville Dam Educational and Breaking News Thread of 2017. No fresh pix from op :-( (Page 282 of 298)

Posted: 4/5/2018 10:16:10 PM EDT

[#1]

I feel like there needs to be a new expression something like "watching a dam fill" to replace like watching paint dry or grass grow.

Posted: 4/6/2018 1:19:09 AM EDT

[#2]

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I feel like there needs to be a new expression something like "watching a dam fill" to replace like watching paint dry or grass grow.

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Don't matter now, it's up to the spillway gates at 816 ft, 14 or 19 more feet and they'll open the spillway.

Oroville Water Level new link, my bookmark didn't work.

Posted: 4/6/2018 9:13:56 AM EDT

[#3]

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Quoted:

Don't matter now, it's up to the spillway gates at 816 ft, 14 or 19 more feet and they'll open the spillway.

Oroville Water Level new link, my bookmark didn't work.

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link you posted is for data from June of 2017
.
current data
.
https://cdec.water.ca.gov/cgi-progs/selectQuery?station_id=ORO&sensor_num=6&dur_code=D&start_date=04/01/2018+00:00&end_date=04/06/2018+00:00&geom=

Posted: 4/6/2018 10:34:44 AM EDT

[#4]

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Quoted:
link you posted is for data from June of 2017
.
current data
.
https://cdec.water.ca.gov/cgi-progs/selectQuery?station_id=ORO&sensor_num=6&dur_code=D&start_date=04/01/2018+00:00&end_date=04/06/2018+00:00&geom=

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Quoted:

Quoted:

Don't matter now, it's up to the spillway gates at 816 ft, 14 or 19 more feet and they'll open the spillway.

Oroville Water Level new link, my bookmark didn't work.

link you posted is for data from June of 2017
.
current data
.
https://cdec.water.ca.gov/cgi-progs/selectQuery?station_id=ORO&sensor_num=6&dur_code=D&start_date=04/01/2018+00:00&end_date=04/06/2018+00:00&geom=

I got that one from duck duck go since my bookmark was a 404. I just assumed it was the current level.

Posted: 4/6/2018 11:30:55 AM EDT

[#5]

Here is the link that includes outflow and inflow as with basin levels too.

http://cdec.water.ca.gov/dynamicapp/QueryF?s=ORO

Attached File

Posted: 4/6/2018 1:43:16 PM EDT

[#6]

It is raining pretty good in that watershed now and with the storm being warm (snow above 10K feet minimum) they will get a ton of runoff / snowmelt. The lake level will be heading up a lot.

Attached File

Posted: 4/6/2018 1:51:22 PM EDT

[#7]

Hopefully it freezes hard up in the mountains overnight maybe slow that snow melt down a wee bit.

Posted: 4/6/2018 2:12:04 PM EDT

[#8]

Forecast says it'll be raining all through tonight and tapering off tomorrow afternoon.

Temps in the 60's in Oroville but it's hard to say what it'll be up in the surrounding mountains.

Posted: 4/6/2018 3:36:06 PM EDT

[#9]

UPDATE: #LakeOroville is at 792' and inflows are up to 12,800 cfs. Hyatt Powerplant releases remain at 13,000 cfs. Main spillway may still be used this weekend or next week. DWR will provide an update tomorrow. #OrovilleSpillways https://t.co/t12JHgBQxL pic.twitter.com/CNOuKwrV4U
— CA - DWR (@CA_DWR) April 6, 2018

Posted: 4/6/2018 4:43:54 PM EDT

[#10]

Attached File

Posted: 4/6/2018 5:28:45 PM EDT

[#11]

Inflow has more than doubled in the past 2 hours

This is nothing like the inflow numbers we saw last year but to jump like this can't be a good sign for the next few days. ETA: if it continues to increase.

Attached File

Posted: 4/7/2018 2:35:55 PM EDT

[#12]

Oroville Storm Update 7 April 2018

https://www.youtube.com/watch?v=fBbZcuLAjJI

Juan Update

Posted: 4/7/2018 2:46:39 PM EDT

[#13]

I hope they're working 24/7... They can still bust out alot of repairs in a few days.

Posted: 4/7/2018 2:46:48 PM EDT

[#14]

Overnight update. Inflow is up quite a bit but there's still space to play with.

Attached File

Posted: 4/7/2018 4:25:08 PM EDT

[#15]

They'll foul it up again.

Posted: 4/7/2018 5:41:54 PM EDT

[#16]

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They'll foul it up again.

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Sadly, my opinion as well. They could have easily kept the spillway dry for a year now before working on it. No, gotta save that water, maybe the snow won't melt this year!

Posted: 4/11/2018 1:04:22 AM EDT

[#17]

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They'll foul it up again.

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Nailed it. Reducing outflow under 10kcfs to Save Water even though they wanted it at the 750 line, they're throttling back for ... some reason. This would leave them one more storm away from getting the new spillway wet.

Posted: 4/11/2018 12:32:12 PM EDT

[#18]

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Sadly, my opinion as well. They could have easily kept the spillway dry for a year now before working on it. No, gotta save that water, maybe the snow won't melt this year!

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Quoted:
They'll foul it up again.

Sadly, my opinion as well. They could have easily kept the spillway dry for a year now before working on it. No, gotta save that water, maybe the snow won't melt this year!

We are having a below snowfall year, up until a few weeks ago we were in drought territory. Even with recent snowfall I think we are in the 50% range of normal. I just drove over Donner Pass last Saturday and there is not very much snow left at high elevations due rain at high elevations instead of snow.

Looks like some small snow events in the next week but every week that passes it becomes less likely of a big snow event for the Sierra.

Posted: 4/11/2018 12:40:38 PM EDT

[#19]

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We are having a below snowfall year, up until a few weeks ago we were in drought territory. Even with recent snowfall I think we are in the 50% range of normal. I just drove over Donner Pass last Saturday and there is not very much snow left at high elevations due rain at high elevations instead of snow.

Looks like some small snow events in the next week but every week that passes it becomes less likely of a big snow event for the Sierra.

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Quoted:

Quoted:
They'll foul it up again.

Sadly, my opinion as well. They could have easily kept the spillway dry for a year now before working on it. No, gotta save that water, maybe the snow won't melt this year!

We are having a below snowfall year, up until a few weeks ago we were in drought territory. Even with recent snowfall I think we are in the 50% range of normal. I just drove over Donner Pass last Saturday and there is not very much snow left at high elevations due rain at high elevations instead of snow.

Looks like some small snow events in the next week but every week that passes it becomes less likely of a big snow event for the Sierra.

There are several other dams not currently under construction they can fill and play dangerous with. Trying to save a couple weeks worth of summer water isn't worth the money spent while waiting for the ground to dry again.

Posted: 4/11/2018 1:32:09 PM EDT

[#20]

Oroville Spillways Phase 2 Update Early April 2018

https://www.youtube.com/watch?v=LNU47YgdM5M

Posted: 4/11/2018 4:35:58 PM EDT

[#21]

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Quoted:
There are several other dams not currently under construction they can fill and play dangerous with. Trying to save a couple weeks worth of summer water isn't worth the money spent while waiting for the ground to dry again.

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Quoted:

Quoted:
They'll foul it up again.

Sadly, my opinion as well. They could have easily kept the spillway dry for a year now before working on it. No, gotta save that water, maybe the snow won't melt this year!

We are having a below snowfall year, up until a few weeks ago we were in drought territory. Even with recent snowfall I think we are in the 50% range of normal. I just drove over Donner Pass last Saturday and there is not very much snow left at high elevations due rain at high elevations instead of snow.

Looks like some small snow events in the next week but every week that passes it becomes less likely of a big snow event for the Sierra.

There are several other dams not currently under construction they can fill and play dangerous with. Trying to save a couple weeks worth of summer water isn't worth the money spent while waiting for the ground to dry again.

No I'm not saying what they are doing is right as the other major reservoirs in the state are in good shape regarding the pools. I don't think there is enough snow in the high country to be worried is the direction I was going. I am a poor communicator vie written words.

Posted: 4/13/2018 6:32:35 AM EDT

[#22]

Reduced outflow to 5,000 and inflows are 10-12,000. They're tying to get to 811 to test out the spillway.

Tards

Posted: 4/13/2018 12:50:19 PM EDT

[#23]

We're at about 33-45% of average snowpack but over 100% of average water levels in major reservoirs. Probably no room for snow melt unless you could get it to Central Valley groundwater aquifers.

Posted: 4/13/2018 8:57:49 PM EDT

[#24]

Just spoke with someone today about the concrete cracking on the spillway. He says there are four inch wide cracks in some spots that can't be repaired by grouting, and that they are talking about replacing significant portions of the reinforced concrete. If that's the case, they probably don't want any significant amount of water coming down from the spillway gates.

Posted: 4/14/2018 2:13:12 AM EDT

[#25]

Part 1
Part 2
Part 3
Part 4
Part 5

Still keeping up to date.

Posted: 4/19/2018 9:21:47 AM EDT

[#26]

Currently at 810.06, Outflow @ 1,885 and Inflow @ 10,189

Posted: 4/19/2018 9:26:15 AM EDT

[#27]

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Currently at 810.06, Outflow @ 1,885 and Inflow @ 10,189

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I was looking at that yesterday.

Looks like they have decided to stockpile some more water.

Posted: 4/19/2018 9:57:57 AM EDT

[#28]

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I was looking at that yesterday.

Looks like they have decided to stockpile some more water.

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Currently at 810.06, Outflow @ 1,885 and Inflow @ 10,189

I was looking at that yesterday.

Looks like they have decided to stockpile some more water.

We are pretty much at the end of our water year. From this point forward the chances of a big storm coming through the area decreases daily. Not saying it can't happen but it's very unlikely. Once we hit Mid May you can pretty much forget about any large storms coming through. The next 7 days are dry and into the mid 80's here, beyond that it doesn't look very wet

Posted: 4/19/2018 11:09:52 AM EDT

[#29]

This is my favorite thread by far and I don't live in California. I like to watch the emergency spillway being built, the progress is amazing:

http://www.parks.ca.gov/live/lakeorovillesra_emergency_spillway

Posted: 4/19/2018 11:57:48 PM EDT

[#30]

Quote History

Quoted:
Just spoke with someone today about the concrete cracking on the spillway. He says there are four inch wide cracks in some spots that can't be repaired by grouting, and that they are talking about replacing significant portions of the reinforced concrete. If that's the case, they probably don't want any significant amount of water coming down from the spillway gates.

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You mean these cracks in the temporary RCC section that's going to be replaced?

Explaining the dark lines on the Oroville Spillway

https://www.youtube.com/watch?v=izBz9nQqjLY

Posted: 4/20/2018 6:18:23 PM EDT

[#31]

Oroville Spillways Phase 2 Update Mid-April 2018

https://www.youtube.com/watch?v=hGoVHrBZzKs

Posted: 4/21/2018 2:36:45 PM EDT

[#32]

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Quoted:
You mean these cracks in the temporary RCC section that's going to be replaced?

https://www.youtube.com/watch?v=izBz9nQqjLY

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Quoted:

Quoted:
Just spoke with someone today about the concrete cracking on the spillway. He says there are four inch wide cracks in some spots that can't be repaired by grouting, and that they are talking about replacing significant portions of the reinforced concrete. If that's the case, they probably don't want any significant amount of water coming down from the spillway gates.

You mean these cracks in the temporary RCC section that's going to be replaced?

https://www.youtube.com/watch?v=izBz9nQqjLY

I asked specifically if it was RCC or reinforced concrete he was talking about, and he said it was the reinforced concrete. Can't say it's accurate, just passing along what someone heard, or thought he heard, from a person working at the site.

Posted: 4/21/2018 7:15:21 PM EDT

[#33]

Quote History

Quoted:
Just spoke with someone today about the concrete cracking on the spillway. He says there are four inch wide cracks in some spots that can't be repaired by grouting, and that they are talking about replacing significant portions of the reinforced concrete. If that's the case, they probably don't want any significant amount of water coming down from the spillway gates.

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Wow. There is no excuse for that. With the amount of mind power, money, and resources going into this, there is simply no excuse.

Posted: 4/21/2018 7:32:40 PM EDT

[#34]

Up to 812

Attached File

Posted: 4/26/2018 1:23:14 PM EDT

[#35]

Oroville Spillways Phase 2 Update Late April 2018

https://www.youtube.com/watch?v=mkGQH92kf1U

Posted: 4/26/2018 3:57:44 PM EDT

[#36]

Part 5

working on the spillway again.

ETA: due to repeated confusion... adding some captions.

Here they seem to be grinding away at the RCC on the spillway. This is part of the plan to replace the top layer of RCC with structural concrete.

At the base of spillway where the "dragons teeth" or dentites are and the original wall remains they look to be cutting into that wall.

Posted: 4/26/2018 4:32:04 PM EDT

[#37]

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Part 5
working on the spillway again.

https://i.imgur.com/F9n8iVi.jpg

https://i.imgur.com/ypM3Zio.jpg

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Looks like the roller compacted concrete section was really more temporary than some of us thought. That side wall with the outer layer popped off is not very comforting.

Posted: 4/26/2018 4:45:51 PM EDT

[#38]

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Looks like the roller compacted concrete section was really more temporary than some of us thought. That side wall with the outer layer popped off is not very comforting.

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Isn't that side wall a picture of one of the teeth at the bottom of the spillway?

Posted: 4/26/2018 5:04:50 PM EDT

[#39]

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Quoted:
Isn't that side wall a picture of one of the teeth at the bottom of the spillway?

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Quoted:

Quoted:

Looks like the roller compacted concrete section was really more temporary than some of us thought. That side wall with the outer layer popped off is not very comforting.

Isn't that side wall a picture of one of the teeth at the bottom of the spillway?

Yes it is. That's the old pre disaster wall being worked on.

The first pic is way up the spillway from there and it looks like they're grinding down into the RCC... which was the plan. The plan being to replace the top layer of RCC with structural concrete.

Posted: 4/26/2018 5:14:16 PM EDT

[#40]

Quote History

Quoted:
Looks like the roller compacted concrete section was really more temporary than some of us thought. That side wall with the outer layer popped off is not very comforting.

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Quoted:

Quoted:
Part 5
working on the spillway again.

https://i.imgur.com/F9n8iVi.jpg

https://i.imgur.com/ypM3Zio.jpg

Looks like the roller compacted concrete section was really more temporary than some of us thought. That side wall with the outer layer popped off is not very comforting.

From what I've looked at RCC (not much), it's mostly for road type stuff for vertical pressure stress only. Shear stress and walls isn't a strong point. I'm wondering how long it will take for their very pretty waterfall below the emergency spillway to be spiderwebbed. Maybe their using a different mix after what they've learned from the spillway part, or compacting it more/less and changing the mix. I could see an epoxy type coating on top since it's permanent, but haven't really looked at those plans. Though the epoxy coating on top would allow groundwater to float it a bit which could be a bigger mess than patching the cracks.

am hoping they learn maintenance to avoid repairs, but if their water level is any indication, they haven't really changed procedures that much.

Posted: 4/26/2018 6:15:40 PM EDT

[#41]

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Isn't that side wall a picture of one of the teeth at the bottom of the spillway?

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Quoted:

Quoted:

Looks like the roller compacted concrete section was really more temporary than some of us thought. That side wall with the outer layer popped off is not very comforting.

Isn't that side wall a picture of one of the teeth at the bottom of the spillway?

Posted: 4/26/2018 6:39:39 PM EDT

[#42]

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Quoted:
https://i.imgur.com/c5mCzcm.jpg

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Quoted:

Quoted:

Looks like the roller compacted concrete section was really more temporary than some of us thought. That side wall with the outer layer popped off is not very comforting.

Isn't that side wall a picture of one of the teeth at the bottom of the spillway?

https://i.imgur.com/c5mCzcm.jpg

They're touching up the lower half so it can withstand the flows for another 50 years, but leaving the upper scars as a reminder, right?

Or did that plan change?

Posted: 4/26/2018 6:43:53 PM EDT

[#43]

Quote History

Quoted:
Looks like the roller compacted concrete section was really more temporary than some of us thought. That side wall with the outer layer popped off is not very comforting.

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Quoted:

Quoted:
Part 5
working on the spillway again.

https://i.imgur.com/F9n8iVi.jpg

https://i.imgur.com/ypM3Zio.jpg

Looks like the roller compacted concrete section was really more temporary than some of us thought. That side wall with the outer layer popped off is not very comforting.

Not all all looks like it was full of air. was that roller compacted or sprayed?

Posted: 4/26/2018 6:51:28 PM EDT

[#44]

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Not all all looks like it was full of air. was that roller compacted or sprayed?

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did they spray concrete back in 1968? That's the original wall not the RCC.

Posted: 4/26/2018 6:55:45 PM EDT

[#45]

Quote History

Quoted:
They're touching up the lower half so it can withstand the flows for another 50 years, but leaving the upper scars as a reminder, right?

Or did that plan change?

View Quote View All Quotes

View All Quotes

Quote History

Quoted:

Quoted:

Looks like the roller compacted concrete section was really more temporary than some of us thought. That side wall with the outer layer popped off is not very comforting.

Isn't that side wall a picture of one of the teeth at the bottom of the spillway?

https://i.imgur.com/c5mCzcm.jpg

They're touching up the lower half so it can withstand the flows for another 50 years, but leaving the upper scars as a reminder, right?

Or did that plan change?

supposed to be resurfacing the entire blocks

Posted: 4/26/2018 6:57:56 PM EDT

[#46]

here is the latest construction update

https://www.water.ca.gov/News/News-Releases/All-News-Articles/Lake-Oroville-Construction-Updates-April-18

Posted: 4/26/2018 6:58:39 PM EDT

[#47]

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did they spray concrete back in 1968? That's the original wall not the RCC.

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I did not realize it was the tooth. But still it looks to be full of air pockets behind the rebar.

Posted: 4/26/2018 7:05:11 PM EDT

[#48]

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I did not realize it was the tooth. But still it looks to be full of air pockets behind the rebar.

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Quoted:

did they spray concrete back in 1968? That's the original wall not the RCC.

I did not realize it was the tooth. But still it looks to be full of air pockets behind the rebar.

That looks more like someone went to work on it with a jack hammer or hydraulic breaker.

Posted: 4/26/2018 7:08:52 PM EDT

[#49]

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Quoted:
That looks more like someone went to work on it with a jack hammer or hydraulic breaker.

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Quoted:

did they spray concrete back in 1968? That's the original wall not the RCC.

I did not realize it was the tooth. But still it looks to be full of air pockets behind the rebar.

That looks more like someone went to work on it with a jack hammer or hydraulic breaker.

it was hydro-blasted

Posted: 4/26/2018 8:03:03 PM EDT

[#50]

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it was hydro-blasted

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That makes sense. The smoothness of the innards confused me.

[ARCHIVED THREAD] - Dampocalypse - Oroville Dam Educational and Breaking News Thread of 2017. No fresh pix from op :-( (Page 282 of 298)

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