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Erosion Assessment of Levee Tops Near Lock and Dam 17 and Blackhawk

This report details the observed erosion on levee tops between Lock and Dam 17 and Blackhawk. Break #1 focuses on the conditions looking upstream, while Break #2 examines the levee erosion toward the Mississippi River. Additionally, Break #3 evaluates erosion near the Iowa River, just upstream from its junction with the Mississippi River. These assessments are critical for understanding the integrity of these levees and ensuring effective flood control measures are in place.

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Erosion Assessment of Levee Tops Near Lock and Dam 17 and Blackhawk

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  1. Break #1, looking SE or downstream

  2. Break #1, looking NW or upstream

  3. Levee top erosion between lock and dam 17 and Blackhawk, looking upstream

  4. Levee top erosion, between lock and dam 17 and Blackhawk

  5. Break #2, looking toward Miss River

  6. Levee top erosion, between Break #2 and outlet

  7. Break #3, looking toward Miss River

  8. Levee erosion, Iowa River just upstream from junction with Miss levee

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