Don't Be Distracted : The Real Problem = Historic Mississippi Flood/Intentional Levee Breach

reply to post by lowgo


How much flood area does it have with it?

reply to post by EvolEric

No Evol, I didn't say "sand boils" are caused by levees. Sand boils formed on the outside of the levees. They are a sign that the levee is weakening in the area. I then said bulldozers were brought in to re-enforce the levees with more soil. During the flood of 93, that was one of my duties, watching for emergence of sand boils.We used 4-wheelers to drive along the outside of the levees to look for them. When we spotted them, we notified the C of E's, for further assessment. That it how it was explained to us by the C of E.

Title : Geologic Control of Sand Boils Along Mississippi River Levees.

A common problem during floods along the lower Mississippi River is the formation of sand boils on the landward sides of levees. If the hydrostatic pressure in the pervious substratum landward of a levee becomes greater than the submerged weight of the topstratum, the uplift pressure may cause heaving and rupture at weak spots with a resulting concentration of seepage flow in the form of sand boils. This, in turn, can lead to piping and instability of the levees during critical high-water periods. The disposition of pervious versus impervious floodplain deposits beneath the levee and the angle at which such bodies are crossed by the overlying levees are controlling factors in the localization of sand boils. Thus recognition of alluvial landforms forming the riverbanks, the types of soils association with them, and their detailed mapping in plan and profile are important factors in levee design. Corrective design involves: (a) detailed delineartion of the surface and subsurface geology (b) careful selection of borrow pits to avoid stripping critically thin topstratum deposits, and (c) the use of riverside of landside berms of blankets and/or the installation of relief wells.-Source US Army Corps of Eng. Study

Well I am alive! No strokes! The second blast was felt and heard here, just not on the same scale as the first, but then again it was further away. Working in the public, I heard many recounts of last nights events. SO many people were scared and like me sitting and waiting for the warning horn...only to be shocked when the blast and shaking started. Last I heard, they may not have to blow the third levee, but to be honest I haven't had time to watch the news tonight or check the corps fb page.
I heard several reports today that a house in Hickman Co, was moved off its foundation by the blast last night...I will try and confirm that. The landscape has changed to say to least and will be changed for years to come. I am thankful that as of yet the sleeping monster hasn't been totally awoken!

reply to post by THEDUDE86


THANKS for that link, thedude86. I checked it out. You are a prophet for this time.

reply to post by freedom12


can you source that information you shared...

cos if ya don't the mods will come in and warn us...


now in regards to your posts...

I'm not bad mouthing you...
its cool..

I just wanted to put information out there, that Sand Boils can be caused by seismic activity... not just the weakening of levees and flooding...

I appreciate information you presented... as it comes from someone who has dealings with said Sand Boils...

So don't take it as an attack!

reply to post by Greenize


Been watching for you to come back to the thread... glad all is well on your side of things.

I've been trying to catch all the damage reports coming through and wondering if they had blown the 3rd section yet or not. I hope they do not have to. There's already been enough craziness with all of it.

reply to post by Greenize


Glad to know your still kicking!

I was wondering when you would drop in!

glad you did...


Do you know how far that Hickman, county house was from the detonation site?

reply to post by EvolEric


The ferry to get across the river is in Hickman co. so, its just across the river on the Ky side just further south from where I am... Words can't descibe what it was like... so many people today said they thought it was the big one! You know... the man killer new madrid quake.... shewwwwwww glad it wasn't! Lots of reports of pictures knocked off walls, one womans said it jarred all the flourescent bulbs out the lights in her husbands shops and threw tools down off the walls.... it was a ride!

Also, take a look at this map.... then think about the storms, tornados, floods ..... its an outline map for the US Bible belt...

upload.wikimedia.org...


Food for thought huh?

reply to post by Greenize


found this... thought it was interesting... check out the rest of the site but here is a snip from it

No, the only reason I can fathom to do this - and this is just me speculatin', this isn't something I've heard any public official admit yet - is because a sand boil, according to usgs.gov, is symptomatic of earthquakes. The only logical reason to willingly destroy a levee, ruin farms, and risk dangerous flooding for everyone downriver, is because someone knows something we don't - perhaps that the sand boils are indicating great tectonic pressure and they're trying to stave off an Earthquake on the New Madrid Fault (which is already overdue to blow, some say.) But will a giant explosion at this site prevent an earthquake - or cause one?

Source


It has some more Sand Boil info as well...

and some of the information is outdated... sense the explosions have already occurred...


But maybe that explains the magnitude of the explosion and the reason behind the night time operations

reply to post by EvolEric
Oh I understand you're not badmouthing me. I didn't look up what I had previously stated in regards to "sand boils', but I'm pretty sure it's the same as I had explained earlier. I'm no geologist and was offering my explanation of sand boils as it pertains to levees/flooding along the Miss. River. We worked alongside the C of E in 93 and they needed our help to monitor these boils and levees as they just don't have the manpower to cover an area that extended from the Quad Cites in Illinois down past where you are. I worked mostly in the Quincy area and northwards to where the Illinois river joins the Mississippi.

reply to post by freedom12




Thanks... not just for your input today and yesterday...
but thanks for helping back in '93 with the issues of the flood

reply to post by Greenize


huh... great connection/find there...

Food for thought for sure!

reply to post by EvolEric
Okay Evol, let's not get all worked up with sand boils and the connection to EQ's/seismic events. Sand boils are a common occurance along the Miss. River during flooding or stress on the levees and have nothing to do with EQ's in this case. I know the flooding seems bad now, but it was worse back in 93 and lasted well into August.

Birds Point New Madrid Floodway Joint Information Center:
We have procured additional slurry mix for breaching the third levee section (outflow crevasse). We expect to complete the final blast tomorrow. Our engineers have studied the setback levees and see no elevated risk at New Madrid or other communities outside of the floodway and the project is performing as designed.
2 hours ago ·

Source


The 3rd explosion is set for tomorrow


Also...

Birds Point New Madrid Floodway Joint Information Center Note:
When asked about the Bonnet Carre and Morganza spillways down river MG Walsh stated that, while no decisions have been made at this point, the likelihood of eventually opening the Bonnet Carre Spillway is 'High" and the likelihood of opening the Morganza Spillway is "Medium to High." He also noted that no decisions regarding those spillways will likely be made until next week at the earliest. 2 hours ago

Source



Seems like they are considering opening more spillways

So right now, its Teusday night, 9:40pm US Central. I have The Weather Channel on. There's been an orange Warning crawl going across the bottom of my TV screen which says, Flood warning for the Mississippi is in effect until Friday.

reply to post by EvolEric


I will sleep better tonight knowing that! Two more possible... I am going to have to study on that... I mean really, why tempt fate? I don't know....

reply to post by freedom12


I'm not getting worked up here

I am just posting information on here
that one can easily find by using google and typing 'Sand Boils'

Even by the USGS definition
Sand Boils are EQ Related

A sand boil is sand and water that come out onto the ground surface during an earthquake as a result of liquefaction at shallow depth.

I don't mean to scare anyone...
But i'm not dredging up anything that is not already being said, or already out there


And we have your information to counter act my information...

so there is point and counter point...

Me and you are doing team work here

reply to post by Greenize


I don't understand why myself

It didnt help much the first time


but good thing is... tonight is all clear