In this Book

A Watershed Year
summary

In June 2008, the rivers of eastern Iowa rose above their banks to create floods of epic proportions; their amazing size—flowing in places at a rate nearly double that of the previous record flood—and the rapidity of their rise ruined farmlands and displaced thousands of residents and hundreds of businesses. In Cedar Rapids, the waters inundated more than nine square miles of the downtown area; in Iowa City, where the flood was also the most destructive in history, the University of Iowa’s arts campus was destroyed. By providing a solid base of scientific and technical information presented with unusual clarity and a wealth of supporting illustrations, the contributors to this far-reaching book, many of whom dealt firsthand with the 2008 floods, provide a detailed roadmap of the causes and effects of future devastating floods.

 The twenty-five essays fall naturally into four sections. “Rising Rivers, Spreading Waters” begins by comparing the 2008 floods with the midwestern floods of 1993, moves on to trace community responses to the 2008 floods, and ends by illuminating techniques for forecasting floods and determining their size and frequency. “Why Here, Why Now?” searches for possible causes of the 2008 floods and of flooding in general: annual crops and urban landscapes, inflows into and releases from reservoirs, and climate change. “Flood Damages, Flood Costs, Flood Benefits” considers the complex mix of flood costs and effects, emphasizing damages to cities and farmlands as well as potential benefits to natural communities and archaeological sites. “Looking Back, Looking Forward” lays out approaches to managing the floods of the future that are sure to come.

 While the book draws most of its examples from one particular region, it explains flooding throughout a much larger region—the midwestern Corn Belt—and thus its sobering yet energizing lessons apply well beyond eastern Iowa. By examining the relationships among rivers, floodplains, weather, and modern society; by stressing matters of science and fact rather than social or policy issues; and by addressing multiple environmental problems and benefits, A Watershed Year informs and educates all those who experienced the 2008 floods and all those concerned with the larger causes of flooding.

Table of Contents

  1. Cover
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  1. Frontmatter
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  1. Contents
  2. pp. v-vi
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  1. Preface and Acknowledgments
  2. pp. vii-x
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  1. Introduction
  2. pp. xi-xx
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  1. Section I: Rising Rivers, Spreading Waters
  2. pp. 1-6
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  1. 1. What Causes Floods in Iowa?
  2. pp. 7-18
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  1. 2. Why Were the 2008 Floods So Large?
  2. pp. 19-30
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  1. 3. Iowa City and the Flood
  2. pp. 31-38
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  1. 4. The University of Iowa and the Flood
  2. pp. 39-44
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  1. 5. Linn County and the Flood
  2. pp. 45-52
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  1. 6. Forecasting a Record Flood
  2. pp. 53-60
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  1. 7. Estimating Flood Frequency
  2. pp. 61-70
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  1. Section II: Why Here, Why Now?
  2. pp. 71-76
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  1. 8. The Hydrologic Footprint of Annual Crops
  2. pp. 77-86
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  1. 9. The Hydrology of Urban Landscapes
  2. pp. 87-94
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  1. 10. The Coralville Dam and Reservoir: Design and Operation
  2. pp. 95-102
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  1. 11. The Dam and the Flood: Cause or Cure?
  2. pp. 103-110
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  1. 12. Was Climate Change Involved?
  2. pp. 111-116
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  1. Section III: Flood Damages, Flood Costs, Flood Benefits
  2. pp. 117-122
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  1. 13. Flood Effects on Archaeological Sites
  2. pp. 123-130
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  1. 14. Flood Effects on Modern Communities
  2. pp. 131-138
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  1. 15. Economic Losses from the Floods
  2. pp. 139-146
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  1. 16. How Did the Floods Affect Farmland?
  2. pp. 147-154
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  1. 17. What's in Your Floodwaters?
  2. pp. 155-162
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  1. 18. Air Quality Hazards
  2. pp. 163-170
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  1. 19. Flood Effects on Natural Communities
  2. pp. 171-178
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  1. Section IV: Looking Back, Looking Forward
  2. pp. 179-184
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  1. 20. When (Not If) the Big One Comes
  2. pp. 185-192
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  1. 21. Watershed-Based Flood Management
  2. pp. 193-198
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  1. 22. Flood Barriers
  2. pp. 199-204
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  1. 23. Managing Urban Runoff
  2. pp. 205-214
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  1. 24. Perennial Farming Systems That Resist Flooding
  2. pp. 215-226
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  1. 25. The Great Flood of 1993: Did We Learn Any Lessons?
  2. pp. 227-234
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  1. Epilogue
  2. pp. 235-238
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  1. Notes on Contributors
  2. pp. 239-246
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  1. Index
  2. pp. 247-252
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