I found one, but it’s iffy, at best.
I really don’t want to look for any more. I’m satisfied that it happens. If you don’t want to grant that it does, that’s OK, too.
Most of the structures in the New Orleans area are dried or are close to being dried right now. This “silt sag” seems not to be happening.
Also, there’s a huge misconception in your posts regarding the size of a prospective levee. I know Una was the source of the 100-ft-high figure, but I posit that that is considerable overkill. The levees need to be a little higher, but much stronger – strength was much more of an issue than height. Keep in mind that the majority of flooding in New Orleans was due to a loose barge knocking out a section of a major canal levee. It was basically a freak accident that would have never happened had that barge not just happened to be their in support of a road construction project.
Of course, there was quite a bit of deep flooding caused by the breach of another canal levee across town from the aforementioned barge accident. This breach cause the deepest flooding in the area, yet was caused by structural weakness, not water rising above the levee.
Therefore, even uniform 30-ft levees would be more than adequate. 35 or 40 feet would serve as overbuilding benchmarks, if that were desired.
How high does the water in a house have to be for “silt sag” to occur? Sure this is no issue with waist-deep floding in a home?
And for those homes you saw flooded to the roofs … those are going to be totalled anyway. Not sure how silt sag is going to be much of a factor in the overall reconstruction.
Don’t forget, most of these NO buildings have no basement. Couldn’t keep it dry if they had one.
But you could just take Una’s levees and build them around Naginville.
The way the current Powers That Be have destroyed virtually all of the Gulf Coast wetlands? Gee…we wouldn’t wanna do that… " :rolleyes: " 
Maybe…dig a big ditch to connect it with the river? Oops, sorry, I forgot the Army Corps of Engineers doesn’t like 'em to be called “ditches”–they’re [ahem] “canals”. Anyway, build a bigass canal like the Welland Canal to connect the city with the river.
Well, yeah, we could do that, but it wouldn’t be nearly as much fun, nor would it generate nearly as much pork barrel lard as constructing Brasilia-Version 2.0 from scratch out in the Loosiana boonies.
Nah, the whole point of moving the city is to make Rysdad happy. He sez it can’t be salvaged, so we’ll just pack up the whole thing and take it upstream. Then he’ll be happy, and maybe he’ll stop keeping score with Chigger Points.
Sure, but that never stopped anybody from building before. Love Canal? If you build it, they will come and buy lots there–and let the 22nd century worry about toxic basement seepage.
Well, yeah, you got me there.
I’m not sure. Depends on the height of the water as well as the silt content. If I recall correctly, the flooded houses I saw had their high water marks near the middle of the windows–lower than NO, but higher than waist deep. I seem to recall the high water mark was about as high as I was tall.
(By the way, the houses I saw were flooded during the 1965 and 1969 floods here in the Twin Cities. I was only 12 or 16 at the time so it’s hard to remember fine details. )
True, but I still maintain that reconstruction may not be an option.
Very good point. Even if you do decide that you have to restore a considerable city where NOLA is, you do not HAVE to replicate exactly the NOLA that got destroyed.
Duh. Please explain how this would be more expensive than relocating the whole damn city and all attendant transportation and utility lines, plus modifying the river to allow access to sea vessels.
I finally found a picture of the 1965 flood
here. It’s from this site.
That seems to be about as I remember it. The 1969 flood was lower.
The only reason I remember it to any degree at all is because I attended my cousin’s wedding about a week before the '65 flood, and she lived just outside the edge of the area that flooded. My parents and I drove back over there to scope out the damage afterward. I went over to look at the 1969 flood with some friends from school.
Good grief, where did that last part come from? Where did I say or imply that? I’m more likely to imply or say the opposite, unless it’s about the Subject That Will Not Be Named. And why is my name in all capitals, as opposed to when you mention Rysdad? That’s an odd sentence, up there.
I will. Soon. And I won’t have to modify the river at all.
Well, I have to qualify that to “not much.” But my changes will make it better.
BINGO!
What, so now you’re just arguing that New Orleans might be changed by the experience?
Well, duh.
And that sounds suspiciously like a backpedal.
I’m guessing post 213.
Congratulations, you’ve just been promoted. The Certificate will be forthcoming in the mail. It’s a pretty nice one: apparently it’s been chisled in stone.
Well no. You never made such claims. But, if you look at the immortal chigger point post, you will see that Rysdad seems to be crediting you with extraordinary powers. So, I wasn’t denying any of your claims, which were considered, qualified, and modest. I was denying Rysdad’s claims concerning your powers.
Because in the Land Leviathon it’s revealed that UNA isn’t a name, but initials, designating the agency for which Ms. Persson is employed.
It’s either that or the cap locks got stuck and I didn’t backspace enough.
Well, that is something. Kansas city wasn’t rendered uninhabitable by the deadly silt though, so it doesn’t really help your case.
OK, I understand now, thanks! But this…
OK…I need to know if I’m being whooshed, because if the first possibility is true, I really need to go and re-read my books, because I’ve forgotten a lot. :eek:
Ummm. Remember the $20,000?
Ah, thank you. I need to read that post then. I’ve been out playing “servals and sunburn” at a Zoo with auntie em and SkipMagic part of this weekend, and then moving on to “swords and sunburnery” at the RennFest the other portion of the weekend, so I’m a bit behind.