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Clark, G.R.

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Erosion and sedimentation are natural processes that cannot be stopped or eliminated entirely. Both processes have been accelerated by human intervention. According to the Illinois State Water Plan Task Force report published in 1984, erosion and sedimentation is the major critical issue in water resources facing the State of Illinois. The Illinois River basin drains about 44 percent of the State of Illinois. Most backwater lakes along the Illinois River have lost about 72 percent of their original capacity, and sediment has already filled in some of these lakes. This excessive rate of sedimentation has reduced the ecological and recreational value of most lakes along the river, making sedimentation the most difficult...
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