Mississippi flood & NOLA ?
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arcticfire
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Mississippi flood & NOLA ?
Question , since the track of whats left seems to be to dump huge amounts of water of the mississippi basin for the next week I am curious how much does the river need to flood to overtop it's walls in NOLA ? I know this river floods commonly and the protection around the river is top notch , just curious if the threat is there ?
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The protection from river flooding is much greater than the hurricane protection for NOLA. Huge levees and flood gates along the river protect the city. Flood-control structures and outlets allow engineers to channel floodwaters to the Atchafalaya, to the lakes, and to massive flood-rentention areas (at Morganza), there's also an outflow below the city at Carnarvon. These can divert huge amounts of river water away from the city's levees and flood walls.
New Orleans will never flood from the River (except maybe in a 10,000-year flood). And of course, that's the root of the problem.
The 1927 flood in the delta drove all the river flood control projects in the Midwest for the 20th Century. But those projects helped speed the destruction of the coastal marshes that made Katrina's flooding worse. If the lower Mississippi flood plain had been left alone after 1927, a lot more of the delta would have remained undeveloped, and Katrina would have been met by a huge, healthy, mostly uninhabited coastal marsh, with a much smaller city of New Orleans. But all of SW Louisiana would have been subject to devastating spring floods almost every year.
New Orleans will never flood from the River (except maybe in a 10,000-year flood). And of course, that's the root of the problem.
The 1927 flood in the delta drove all the river flood control projects in the Midwest for the 20th Century. But those projects helped speed the destruction of the coastal marshes that made Katrina's flooding worse. If the lower Mississippi flood plain had been left alone after 1927, a lot more of the delta would have remained undeveloped, and Katrina would have been met by a huge, healthy, mostly uninhabited coastal marsh, with a much smaller city of New Orleans. But all of SW Louisiana would have been subject to devastating spring floods almost every year.
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No way possible.
Despite what you have been lead to believe by the media, the MS River was never a problem for New Orleans during the huricanes. In fact if the River levees were put in place of the hurricane levees, I doubt that the levees would have been over topped/breached during Katrina. The river levees are cement lined on the river side and taller and broader.
Despite what you have been lead to believe by the media, the MS River was never a problem for New Orleans during the huricanes. In fact if the River levees were put in place of the hurricane levees, I doubt that the levees would have been over topped/breached during Katrina. The river levees are cement lined on the river side and taller and broader.
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