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Ben Maas

TL;DR too much sand!

Also, the 9-foot channel depth has done a lot of damage to the ecosystems of the Mississippi.

"Since Congress required the 9-foot shipping channel in 1930, that navigation mission remains first & foremost for the Corps on the river. ...under natural conditions, the upper Mississippi River was 2 feet deep or shallower during low water."

m.startribune.com/mississippi-

Star Tribune · Nonstop dredging kept Mississippi River open this year, but moving sand creates its own problemsBy Chloe Johnson
Dec 13, 2023, 02:55 PM·Public·Mastodon for Android
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