flooding

i just moved to jefferson county missouri and due to flooding am now cut from access from most of the st. louis area, so i was not able to make my doctors appt. or visit family. this is the second flood like this in 18 months where this type of floods never happened here before and many people are asking why. one theory that is going round is that the army corp of engineers built new levies upstream to protect farmland that was always getting flooded and now that water has to have somewhere to go. so now it floods heavily populated areas.