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To: KLP who wrote (136149)	9/1/2005 11:46:18 AM
From: carranza2	Respond to of 793882

You've got it. Essentially, they are compacted mounds of dirt.

To: KLP who wrote (136149)	9/1/2005 12:23:37 PM
From: Ilaine	Read Replies (1) \| Respond to of 793882

The Mississippi River levees are protected from erosion by riprap, large chunks of concrete. The outer part of the berms are made of earth, but I believe that in some places the bases are built up with timber, stone and gravel, maybe sand bags. Levee construction began a couple hundred years ago, piece meal, until the 20th century. There is a long flat area of land between the river and the levee which is called a "batture" or a "scarp", which is usually more or less dry. Acts as a floodplain. One former family plantation and cotton warehouse is now a batture, and leased out as a cow pasture. Pretty place if you don't mind mosquitoes. Edit: it may be that these days the Mississippi River levees are constructed primarily from compacted impervious clay soil. mvr.usace.army.mil