Oroville Lake dam crisis

[snagged in outlet 3]

How about the video of the Gene's Dock getting sucked under the Hwy 5 bridge back during the floods on Norfork?

It took all of 2 seconds to reduce it to kindling.  Boats and all.

[JestersHK]

I was following this on arfcom.  There was a member there who was hiking up above to get some good aerial and he was also live streaming it.  Crazy amount of water.

[MOPanfisher]

5 hours ago, shrapnel said:

If you think about it it's not a matter of if, but WHEN damns will fail.  Does the COE have a plan?  So many superstructures are aging and everyday closer to fail.  I dont think it would take a very strong earthquake to drain LOZ in a matter of 2 days if Bagnell broke.

There are plans.  Probably plans that describe what plans are to be on file.

[Terrierman]

Truman is similar construction to Oroville dam.  The White River dams are reinforced concrete tied into native rock with massive regular spillway capacity not to mention the emergency spillways.  Not remotely likely for a similar deal here.  Flooding yes.  Dam failure no, barring massive earthquake or a nuclear attack with a direct hit.

[Jerry Rapp]

name this southeast Missouri lake emergency spillway aftermath after the flood in May 2011.  And the dam is still there. 

[jdmidwest]

1 hour ago, Jerry Rapp said:

name this southeast Missouri lake emergency spillway aftermath after the flood in May 2011.  And the dam is still there. 

The overflow spillway worked like it was supposed to.  I don't think they worried that the Corps were ever gonna lose Wappappello Dam though.   It almost went over in 1999, but they sandbagged it and raised the level on the main dam wall instead.

[jdmidwest]

I fish TN tailwaters alot.  Pickwick Dam is under rehab now, there is an area of concern where it may fail in a major earthquake on one area. 

Center Hill has a unique area we found trout to be gathered in, looked like a spring coming out of the base of a bluff.  But, water from the lake above had worked its way around the dam on the bluff side and made a hole.  I don't think there was a plan to fix that, but the other side was going thru a rehab in the earthen part.

The dam above Center Hill created a big gusher thru a bluff that made a nice waterfall too.

Best way to avoid any issues, just don't live downstream.  I have seen many get flooded out along the Mississippi River over the year and the only fault is that they picked a poor place to build a house.

[MOPanfisher]

Forgot about wapp. Most dams are a combination of earth fill portion and concrete portion, Table Rock has the concrete section along with a compacted earth fill.  Yes it would take a very severe earthquake etc. To cause a failure.  The most dangerous and biggest threats are piping and over topping, either can cause complete failure in a very short order.  Teton dam is a good example of that.  One thing about the COE is their manic devotion to dam safety.  There are a set of ranking nationwide that essentially decide who gets the money for fixes first, combines, probable failure mode with results.  Sort of if it fails and only farmland and relatively few people are affected it's gonna rank low, put one above say Nashville and show some major risks, it's gonna rank up there.  It is stupid expensive to do some of those repairs but not many other choices.

[ozark trout fisher]

41 minutes ago, jdmidwest said:

Best way to avoid any issues, just don't live downstream.  I have seen many get flooded out along the Mississippi River over the year and the only fault is that they picked a poor place to build a house.

If you are talking about living in a floodplain, yeah totally agree. But I'm not sure you can ask people not to live in an area where they could be impacted by the failure of a man-made structure that may not have even existed when their home was built.

[Phil Lilley]

When we bought the resort, we weren't in the flood plain.  Now we're past that- we're in the flood way.