It is a little more complicated than that Hardhead LINK
"Operating the diversion consistently in
response to saltwater intrusion events
may help to
maintain marsh species composition
along the estuarine gradient while
survival and rates of production.
Whatever benefits result from increases
in the inorganic
sediment supply should be weighed
against the impact of adding nutrients
that may weaken the
Per RnR poster Steve: "This report is a study of how much the roadbed of highway 23 in Plaquemines Parish has sunk in the last 25 years.
Go to the bottom of the report, and click on the link that says HTML slide show, then click on slide 13.
What you will see is that highway 23 in Belle Chasse has sunk 15 centimeters (6 inches) in the last 25 years. 6 inches doesn't sound like a lot, but it is when you are near sea level.
Down by Myrtle Grove to Empire, highway 23 has sunk 26 centimeters, or just over 10 inches in the last 25 years! That means the entire land and roadbed between the 2 levees has sunk that much.
Want the reason? It sure ain't the oilfield canals, is the LEVEES. And thats just in 25 years, what about the 50 years before that? How much did it sink then?
Hate to say this, but the only solution is to either get a couple dozens dredges in the river and start filling the marsh, or wait until the entire marsh ecosystem is destroyed and open up the levees WIDE OPEN, and not these little piss ant diversions. Suggesting anything else is like talking about fishing conditions when the boat is sinking..."
This post was edited on 3/27 at 11:06 am