Mount Morris Dam
E344779
Mount Morris Dam is a large concrete flood-control dam on the Genesee River in western New York, known for protecting downstream communities from flooding and serving as a prominent feature of Letchworth State Park.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Mount Morris Dam canonical | 2 |
| Mount Morris Dam overlook | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3109778 — 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: Mount Morris Dam Context triple: [Letchworth State Park, hasStructure, Mount Morris Dam]
-
A.
Forestville Dam
Forestville Dam is a hydroelectric and recreational dam located on the Dead River near Marquette in Michigan’s Upper Peninsula.
-
B.
Conklingville Dam
Conklingville Dam is a concrete gravity dam in New York that created the Great Sacandaga Lake reservoir for flood control and hydroelectric power generation.
-
C.
Denison Dam
Denison Dam is a large earthen dam on the Red River between Texas and Oklahoma, built for flood control, hydroelectric power generation, and water supply.
-
D.
Norris Dam
Norris Dam is a Tennessee Valley Authority hydroelectric dam on the Clinch River in eastern Tennessee, notable as TVA’s first major dam project and a key component of regional flood control and power generation.
-
E.
McClure Dam
McClure Dam is a hydroelectric dam on the Dead River in Michigan, forming McClure Basin and providing power and water management for the surrounding region.
- 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: Mount Morris Dam Target entity description: Mount Morris Dam is a large concrete flood-control dam on the Genesee River in western New York, known for protecting downstream communities from flooding and serving as a prominent feature of Letchworth State Park.
-
A.
Forestville Dam
Forestville Dam is a hydroelectric and recreational dam located on the Dead River near Marquette in Michigan’s Upper Peninsula.
-
B.
Conklingville Dam
Conklingville Dam is a concrete gravity dam in New York that created the Great Sacandaga Lake reservoir for flood control and hydroelectric power generation.
-
C.
Denison Dam
Denison Dam is a large earthen dam on the Red River between Texas and Oklahoma, built for flood control, hydroelectric power generation, and water supply.
-
D.
Norris Dam
Norris Dam is a Tennessee Valley Authority hydroelectric dam on the Clinch River in eastern Tennessee, notable as TVA’s first major dam project and a key component of regional flood control and power generation.
-
E.
McClure Dam
McClure Dam is a hydroelectric dam on the Dead River in Michigan, forming McClure Basin and providing power and water management for the surrounding region.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
concrete gravity dam
ⓘ
flood control structure ⓘ |
| basinCountry | United States of America ⓘ |
| category |
Buildings and structures in Livingston County, New York
ⓘ
Dams in New York State ⓘ United States Army Corps of Engineers dams ⓘ |
| completionDate | 1952 ⓘ |
| constructionStartDate | 1948 ⓘ |
| country | United States of America ⓘ |
| crosses | Genesee River ⓘ |
| engineeringDiscipline | civil engineering ⓘ |
| floodEventMitigated | 1972 Hurricane Agnes flooding on the Genesee River ⓘ |
| hasFunction | storage of floodwaters during high-flow events ⓘ |
| hasPublicAccess |
observation area
ⓘ
visitor center ⓘ |
| hasSpillway | concrete spillway ⓘ |
| hasStatus | operational ⓘ |
| hasTouristActivity | guided tours ⓘ |
| hasViewpoint |
Mount Morris Dam
self-linksurface differs
ⓘ
surface form:
Mount Morris Dam overlook
|
| height | approximately 216 feet ⓘ |
| length | approximately 1,028 feet ⓘ |
| locatedIn | New York State ⓘ |
| locatedInCounty | Livingston County, New York NERFINISHED ⓘ |
| locatedInProtectedArea | Letchworth State Park ⓘ |
| locatedInRegion | Western New York ⓘ |
| locatedInValley | Genesee River gorge ⓘ |
| locatedNear |
Mount Morris, New York
ⓘ
Village of Mount Morris ⓘ |
| locatedOnRiver | Genesee River ⓘ |
| locatedSouthOf | Rochester, New York ⓘ |
| managingAgency | U.S. Army Corps of Engineers ⓘ |
| material | concrete ⓘ |
| nearbyAttraction |
Letchworth State Park
ⓘ
surface form:
Letchworth State Park gorge
|
| nearbyCity | Rochester, New York ⓘ |
| notableFor |
being a major feature of Letchworth State Park
ⓘ
reducing flood risk on the lower Genesee River ⓘ |
| openingDate | 1952 ⓘ |
| operatedBy |
U.S. Army Corps of Engineers
ⓘ
surface form:
U.S. Army Corps of Engineers Buffalo District
|
| operator | U.S. Army Corps of Engineers ⓘ |
| ownedBy |
United States government
ⓘ
surface form:
United States federal government
|
| partOf | Genesee River watershed ⓘ |
| protects |
Rochester metropolitan area
ⓘ
surface form:
Rochester, New York metropolitan area
downstream communities along the Genesee River ⓘ |
| purpose |
flood control
ⓘ
recreation ⓘ water flow regulation ⓘ |
| regionServed |
Genesee River watershed
ⓘ
surface form:
Genesee River valley
|
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: Mount Morris Dam Description of subject: Mount Morris Dam is a large concrete flood-control dam on the Genesee River in western New York, known for protecting downstream communities from flooding and serving as a prominent feature of Letchworth State Park.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Mount Morris Dam overlook