1993 Midwest floods
E856316
The 1993 Midwest floods were a catastrophic and prolonged flooding disaster along the Mississippi and Missouri River basins that caused widespread damage across several U.S. states.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 1993 Midwest floods canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10299081 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: 1993 Midwest floods Context triple: [Coralville Dam, floodEvent, 1993 Midwest floods]
-
A.
1997 Red River flood
The 1997 Red River flood was a catastrophic spring flood along the Red River of the North that devastated communities in North Dakota, Minnesota, and Manitoba, causing widespread evacuations and extensive property damage.
-
B.
2009 Red River flood
The 2009 Red River flood was a major spring flood along the Red River of the North that caused extensive flooding and emergency responses in North Dakota, Minnesota, and Manitoba.
-
C.
Great Mississippi Flood of 1927
The Great Mississippi Flood of 1927 was one of the most destructive river floods in U.S. history, inundating vast areas along the Mississippi River, displacing hundreds of thousands of people, and reshaping American flood control policy and race relations in the South.
-
D.
Great Sioux City Flood of 1892
The Great Sioux City Flood of 1892 was a devastating late-19th-century flood that inundated Sioux City, Iowa, causing widespread destruction and loss of life along the Missouri River.
-
E.
Great Flood of 1879
The Great Flood of 1879 was a catastrophic inundation of the city of Szeged in Hungary that destroyed most of the town and prompted a major reconstruction.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: 1993 Midwest floods Target entity description: The 1993 Midwest floods were a catastrophic and prolonged flooding disaster along the Mississippi and Missouri River basins that caused widespread damage across several U.S. states.
-
A.
1997 Red River flood
The 1997 Red River flood was a catastrophic spring flood along the Red River of the North that devastated communities in North Dakota, Minnesota, and Manitoba, causing widespread evacuations and extensive property damage.
-
B.
2009 Red River flood
The 2009 Red River flood was a major spring flood along the Red River of the North that caused extensive flooding and emergency responses in North Dakota, Minnesota, and Manitoba.
-
C.
Great Mississippi Flood of 1927
The Great Mississippi Flood of 1927 was one of the most destructive river floods in U.S. history, inundating vast areas along the Mississippi River, displacing hundreds of thousands of people, and reshaping American flood control policy and race relations in the South.
-
D.
Great Sioux City Flood of 1892
The Great Sioux City Flood of 1892 was a devastating late-19th-century flood that inundated Sioux City, Iowa, causing widespread destruction and loss of life along the Missouri River.
-
E.
Great Flood of 1879
The Great Flood of 1879 was a catastrophic inundation of the city of Szeged in Hungary that destroyed most of the town and prompted a major reconstruction.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
flood
ⓘ
river flood ⓘ |
| affectedArea | over 400000 square miles ⓘ |
| agriculturalImpact |
major crop losses in corn and soybeans
ⓘ
millions of acres of cropland flooded ⓘ |
| cause |
above-average spring and summer precipitation
ⓘ
persistent heavy rainfall ⓘ saturated soil conditions ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| damage | over 15 billion US dollars ⓘ |
| economicImpact | one of the costliest natural disasters in U.S. history ⓘ |
| endTime | 1993-10 ⓘ |
| environmentalImpact |
contamination from industrial and agricultural chemicals
ⓘ
extensive agricultural land flooding ⓘ soil erosion ⓘ |
| evacuatedPeople | tens of thousands ⓘ |
| highestFloodStageLocation |
St. Louis, Missouri
ⓘ
linked to:
St. Louis, Missouri, United States
|
| humanDeaths | over 40 ⓘ |
| infrastructureDamage |
rail lines disrupted
ⓘ
roads and bridges destroyed ⓘ water treatment plants damaged ⓘ |
| leveeFailures | hundreds of levee breaches ⓘ |
| locatedIn |
Illinois
ⓘ
Iowa ⓘ Kansas ⓘ Midwestern United States ⓘ Minnesota ⓘ Missouri ⓘ Nebraska ⓘ North Dakota ⓘ South Dakota ⓘ Wisconsin ⓘ |
| mainRiver |
Mississippi River
ⓘ
Missouri River ⓘ |
| managedBy | Federal Emergency Management Agency ⓘ |
| notableCityAffected |
Davenport, Iowa
ⓘ
Des Moines, Iowa ⓘ East St. Louis, Illinois ⓘ Kansas City, Missouri ⓘ
linked to:
Kansas City, Missouri, United States
St. Louis, Missouri ⓘ
linked to:
St. Louis, Missouri, United States
St. Paul, Minnesota ⓘ
linked to:
Saint Paul
|
| prompted |
changes in levee and flood-control infrastructure planning
ⓘ
reassessment of floodplain management policies in the United States ⓘ |
| record |
set record river stages at multiple gauging stations on the Mississippi River
ⓘ
set record river stages at multiple gauging stations on the Missouri River ⓘ |
| response |
federal disaster declaration
ⓘ
large-scale evacuation and relief operations ⓘ |
| startTime | 1993-04 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: 1993 Midwest floods Description of subject: The 1993 Midwest floods were a catastrophic and prolonged flooding disaster along the Mississippi and Missouri River basins that caused widespread damage across several U.S. states.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.