American Bottoms Groundwater Study Reconnaissance Report, Water Resources Investigation, St. Louis Metropolitan Area, Missouri and Illinois.

摘要

The purpose of this study is to investigate groundwater flooding and associated water problems in the American Bottoms area to determine the need for, and the feasibility of, providing improvements. The study area is located on the Illinois side of the Mississippi River floodplain between Alton and Dupo, Illinois. The area comprises about 175 square miles, is approximately 30 miles long, and has a maximum width of 11 miles. Federally constructed levees protect the area from direct Mississippi River flooding. Problem areas identified during Stage I of this study include damage caused by high groundwater levels, water supply, environmental quality and water related recreation opportunities. Stage II, Development of Intermediate Plans, will address the problems. The estimated study cost for Stage II is $730,000. Stage II will be complete in October 1981.