Risky farmland (IMAGE) University of Iowa Caption Researchers at the University of Iowa created comprehensive maps showing flood risk for farmland throughout Iowa. The map above/below shows the flood risk, crop yield, and annual average losses for farmland under two time intervals in the Middle Cedar watershed, which includes Cedar Falls/Waterloo and Cedar Rapids. Credit Enes Yildirim and Ibrahim Demir, University of Iowa Usage Restrictions None. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.