Question: James Scott caused the worst American flooding disaster since when?

Related documents: [0]  [DOC] James Robert "Jimmy" Scott (born November 20, 1969) was convicted of causing a massive flood of the Mississippi River at West Quincy, Missouri as part of the Great Flood of 1993. He is currently serving a sentence of 20 years to life in a Missouri prison. [END] 
[1]  [DOC] The Great Mississippi and Missouri Rivers Flood of 1993 (or "Great Flood of 1993") occurred in the American Midwest, along the Mississippi and Missouri rivers and their tributaries, from April to October 1993. The flood was among the most costly and devastating to ever occur in the United States, with $15 billion in damages. The hydrographic basin affected over around 745 miles in length and 435 miles in width, totaling about 320000 mi2 . Within this zone, the flooded area totaled around 30000 mi2 and was the worst such U.S. disaster since the Great Mississippi Flood of 1927, as measured by duration, area inundated, persons displaced, crop and property damage, and number of record river levels. In some categories, the 1993 flood even surpassed the 1927 flood, at the time the largest flood ever recorded on the Mississippi. [END]  
Answer: 1927
1927