Draft Feasibility Report: Preliminary Report Flood Damage Reduction for Des Moines and Raccoon Rivers Project Des Moines, Iowa with Integrated Environmental Assessment [open pdf - 4MB]
"The primary purpose of this study is to evaluate and determine the feasibility of implementing flood damage reduction improvements for the City. The USACE, Rock Island District and the City have completed this feasibility report for flood damage reduction with integrated Environmental Assessment. The report contains results of a comprehensive investigation of the flooding problems along the Des Moines and Raccoon Rivers and primary tributaries within the city limits of Des Moines."
U.S. Army Corps of Engineers, Rock Island, Illinois: http://www.mvr.usace.army.mil/