1844 The Great Flood of 1844 is the biggest flood ever recorded on the Missouri River and Upper Mississippi River in terms of discharge. The flood was widespread since the region had little to no levees at the time, causing the waters to spread far from their normal banks. The Wyandotte Indians a group that formed from the war and disease from the Huron Confederacy and Petun Indian tribes lost 100 people due to diseases after the flood occured in the vicinity of what is now Kansas City, Kansas.
1903 – This flood affected the Missouri, Kansas and lower Republican River Basins. A total of 57 people died in the flood, 38 of those were in Topeka. 4,000 people were forced from their homes.
1951 – The Kansas, Marais Des Cygnes, Neosho and River Basins flooded. 19 people were killed and 1,100 people were injured in Kansas and Missouri. The most damage occurred along the Kansas River where the cities of Manhattan, Topeka, Lawrence, and Kansas City saw extensive damage. A total of 45,000 homes were damaged or destroyed. Estimates for total damages was $760 million (over $5 billion by todays standards).