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I love that read too. The whole context of chap 3 reinforces the windowed (seasonal) aspect of event timing.Quote:
Originally Posted by IberiaCajun
Many think of time as a specific "clock stamp" but WHEN and how seasonal things actually occur is influenced by our actions.
jmo
USACOE has started to close the Bonnet Carre Spillway this morning. The river is on a steady slow decline. This is the first time the River has been this high for so long. It is July 22 and the river has been at flood stage since the beginning of the year. It will be interesting to see how the levees look after the water recedes.
Wow! 7 months! We are entering new territory here.Quote:
Originally Posted by HelmutVII
Here is an article from Don Shoopman of the Daily Iberian.
He talks about the affect Barry had on Vermilion Bay.
https://www.iberianet.com/sports/out...fc5569b2a.html
<blockquote class="twitter-tweet"><p lang="en" dir="ltr">JUST NOW: For the first time since January 5 (212 Days) the Mississippi River gauge at <a href="https://twitter.com/hashtag/BatonRouge?src=hash&ref_src=twsrc%5Etfw">#BatonRouge</a> is below flood stage. <a href="https://twitter.com/hashtag/LaWX?src=hash&ref_src=twsrc%5Etfw">#LaWX</a> <a href="https://t.co/rgfubGqgEV">pic.twitter.com/rgfubGqgEV</a></p>— Josh Eachus (@DrJoshWX) <a href="https://twitter.com/DrJoshWX/status/1158107599365185536?ref_src=twsrc%5Etfw">August 4, 2019</a></blockquote> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>
<blockquote class="twitter-tweet"><p lang="en" dir="ltr">The long duration historic flooding of the Mississippi River has come to an end for the Baton Rouge area! The river reading at BTRL1 has reported a flood stage above 35 feet for a record 211 days! Good news: Forecast calls for continued falls through mid-August! <a href="https://twitter.com/hashtag/lawx?src=hash&ref_src=twsrc%5Etfw">#lawx</a> <a href="https://twitter.com/hashtag/flooding?src=hash&ref_src=twsrc%5Etfw">#flooding</a> <a href="https://t.co/LKkyrozR8I">pic.twitter.com/LKkyrozR8I</a></p>— NWS New Orleans (@NWSNewOrleans) <a href="https://twitter.com/NWSNewOrleans/status/1158111563661942785?ref_src=twsrc%5Etfw">August 4, 2019</a></blockquote> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>
They need to inspect the levees and repair ASAP. The next flood season is not far away.
They could make the vermilion river a mile deep. It won't help. They need to make it wider at the top. As Carl Sagan said "the laws of physics are universal and they can not be broken.".
Most of the area south and east of Youngsville drains to the Parc Perdu. Nobody taking about that.
The coulees in my neighborhood at the south end of K Saloom all drain into the Vermilion. Would dredging not allow the river to flow to the Bay faster and move more water downstream faster?Quote:
Originally Posted by HelmutVII
The end result of dredging is some "poor" landowner will be paid to receive the spoils. The contractor sells the sinkers, and people like me are amused by the number of stolen vehicles that will be recovered.Quote:
Originally Posted by HelmutVII
Went to the meeing at the southside library last night discussing drainage. The Youngsville situation was brought up and the fact a lot of the water east of 90 drains thru Youngsville. Additionally, Vermilion Parish is allegedly against dredging the river.
Allegedly the big problem we have in Lafayette is these rentention ponds that are built are for a 5 year flood event, not 100 year.
I use the word "allegedly" since these were mostly politicians speaking, abet one engineer with hydrological experience.
No. If you have a glass that's half full and you want to put more water in it where is is going to go? The top half right. It's all about water SURFACE elevation. Not depth of flow.Quote:
Originally Posted by Ragin4U
Who said that runoff east of 90 drains through Youngsville? Were they sober?Quote:
Originally Posted by ZoomZoom
Pretty sure DEQ would classify dredged spoil from the Vermilion as hazardous. So who is gonna foot the bill for reclamation our disposal?Quote:
Originally Posted by ZoomZoom
He did say it was politicians speaking. Remember that bill to drug test State Legislators???Quote:
Originally Posted by HelmutVII
I think NAVD88 at LA 733 is zero. Not much slope to get things moving. As you say dredging isn't the answer.Quote:
Originally Posted by HelmutVII
Years ago Houston was talking about potentially putting thrusters in Buffalo Bayou in order to try and increase velocity. Never happened but it was a thought at the time.
Regional retention/detention is likely the answer.
Quote:
Originally Posted by Cajun90
If you go here
https://waterdata.usgs.gov/la/nwis/uv?site_no=07386940
and select gauge height you will see that the water level is reported and displayed every fifteen minutes or so. Select "graph" as the option and select "gauge height". during periods of low flow (no rain) you will see the water level varies and has "about" two highs and two lows a day. the past few days the water level has been bouncing back and forth around elevation 4.0 NAVD88. The highs and lows correspond to the high and low tides. The gauge is at about Mile 45 of the river. That means there is 4.0 feet of fall in the water surface in 45.0 miles. (that is not much at all). That means the bottom of the river is below sea level. The water below elevation 0.0 (give or take) CANNOT move as fast as the water above elevation 0.0 because that is the level of the Gulf of Mexico. When water levels get low velocities get low and the water starts to drop its silt. When water levels get high velocities increase and the bottom of the river is scoured (to a degree). Basically, any portion of the conveyance area of the river that is below elevation 0.00 NAVD88 is useless as a conveyance for water. Trust me on this.
Yes and I'm pretty sure most of the population in the area doesn't understand this concept. Its time for people in this area to start understanding their risk better and realize that little to nothing is going to happen to significantly change flood levels. Retention areas would help but were talking about some rather large lakes to be of any signifigance. These small attempts when they build a neighborhood to do retention ponds are not much more than a false sense of security.Quote:
Originally Posted by HelmutVII
The real answer in my opinion.... build higher.
Forgot the name, on Ritter's staff at Youngsville. Supposedly all the swamp area near airport and south goes thru Youngsville.Quote:
Originally Posted by HelmutVII
One of those "had to be there" to get the full experience. Was suppose to be about drainage, but was 50/50 political. I'd go into more detail but don't want to go there, but I left disappointed overall.
I must admit, I enjoyed the "altar call" where one lady announced her candidacy for city council after multiple calls for people to run for office.
This is just a shot in the dark, but instead of draining South & West, would it be possible for at least some of this water to be diverted East into the Long Bridge swamp where no one will ever build anything? It seems like that area could be a perfect retention pond.Quote:
Originally Posted by ZoomZoom
Ooooohhhhhh mmmmmyyyyyy. Most of the area East of highway 90 is much lower than the area. West of 90. That is the Coteau Ridge. Sigh.Quote:
Originally Posted by ZoomZoom
I would agree but the info given the other night the rentention ponds we have are not what we need long term, not deep enough. I'm sure Mr. Environmental would be first in line filing suit if a wetland was disturbed, that is, unless he can make a buck. I started to be a jerk and ask where would anyone want to put an area retention pond just because NIMBY would have made it interesting. But I didn't.Quote:
Originally Posted by CajunRebel
.........Story in the DA about the threat of flooding in NO if a cat 4 would hit.......also about danger of the levees failing from under......basis is that the Miss River is still very high and all you stat guys would love the juxtapositions!!!Quote:
Originally Posted by ZoomZoom
If they said that, they were incorrect. It’s the other way around. Much of Youngsville drains through coulee lasalle and out to the cypress island swamp between Broussard and st martinville.Quote:
Originally Posted by ZoomZoom