Morrison-Knudsen
E162828
Morrison-Knudsen was a major American engineering and construction company known for building large-scale infrastructure projects worldwide, including dams, bridges, and transportation systems.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Morrison-Knudsen canonical | 11 |
| Morrison-Knudsen Company | 2 |
| Morrison-Knudsen engineers | 1 |
| Morrison‑Knudsen Company | 1 |
| Morrison–Knudsen International | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1414196 — 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: Morrison-Knudsen Context triple: [25 de Abril Bridge, engineer, Morrison-Knudsen]
-
A.
Kiewit Constructors
Kiewit Constructors is a major North American construction and engineering contractor known for delivering large-scale infrastructure and transportation projects.
-
B.
M.A. Mortenson Company
M.A. Mortenson Company is a major U.S.-based construction and real estate development firm known for building large-scale sports, entertainment, and commercial facilities.
-
C.
Bechtel Corporation
Bechtel Corporation is a major American engineering, construction, and project management company known for large-scale infrastructure and energy projects worldwide.
-
D.
Turner Construction Company
Turner Construction Company is a major American construction management firm known for building large-scale commercial, sports, and institutional projects across the United States and internationally.
-
E.
Guilford Transportation Industries
Guilford Transportation Industries was a major New England-based railroad holding company that acquired and operated several regional railroads, later rebranding as Pan Am Railways.
- 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: Morrison-Knudsen Target entity description: Morrison-Knudsen was a major American engineering and construction company known for building large-scale infrastructure projects worldwide, including dams, bridges, and transportation systems.
-
A.
Kiewit Constructors
Kiewit Constructors is a major North American construction and engineering contractor known for delivering large-scale infrastructure and transportation projects.
-
B.
M.A. Mortenson Company
M.A. Mortenson Company is a major U.S.-based construction and real estate development firm known for building large-scale sports, entertainment, and commercial facilities.
-
C.
Bechtel Corporation
Bechtel Corporation is a major American engineering, construction, and project management company known for large-scale infrastructure and energy projects worldwide.
-
D.
Turner Construction Company
Turner Construction Company is a major American construction management firm known for building large-scale commercial, sports, and institutional projects across the United States and internationally.
-
E.
Guilford Transportation Industries
Guilford Transportation Industries was a major New England-based railroad holding company that acquired and operated several regional railroads, later rebranding as Pan Am Railways.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
defunct company
ⓘ
engineering and construction company ⓘ |
| alternateName | M-K ⓘ |
| areaServed | worldwide ⓘ |
| basedIn |
Boise, Idaho
ⓘ
linked to:
Boise, Idaho, United States
|
| country |
United States
ⓘ
linked to:
United States of America
|
| dissolved | 1996 ⓘ |
| fate | acquired by Washington Group International ⓘ |
| foundedBy |
Harry W. Morrison
ⓘ
Morris H. Knudsen ⓘ |
| hasReputation | pioneer in large-scale engineering projects ⓘ |
| headquartersLocation |
Boise, Idaho
ⓘ
linked to:
Boise, Idaho, United States
|
| headquartersRegion | Pacific Northwest ⓘ |
| inception | 1905 ⓘ |
| industry |
construction
ⓘ
engineering ⓘ |
| keyPerson |
Harry W. Morrison
ⓘ
Morris H. Knudsen ⓘ |
| knownFor |
bridges
ⓘ
dams ⓘ large-scale infrastructure projects ⓘ transportation systems ⓘ |
| legalForm | corporation ⓘ |
| notableFor |
international construction consortia participation
ⓘ
major U.S. federal infrastructure contracts ⓘ |
| notableProjectType |
bridges
ⓘ
highways ⓘ hydroelectric dams ⓘ rail systems ⓘ |
| notableWork |
Bay Area Rapid Transit system
ⓘ
linked to:
BART
Cape Canaveral launch facilities ⓘ
linked to:
Cape Canaveral launch complexes
Grand Coulee Dam ⓘ Hoover Dam ⓘ Korean War military construction projects ⓘ San Francisco–Oakland Bay Bridge ⓘ Trans-Alaska Pipeline System ⓘ World War II military construction projects ⓘ
linked to:
World War II defences
|
| numberOfEmployees | tens of thousands at peak ⓘ |
| operatedDuring | 20th century ⓘ |
| participatedIn |
construction of Grand Coulee Dam MWAK consortium
ⓘ
construction of Hoover Dam Six Companies consortium ⓘ |
| specializedIn |
heavy civil construction
ⓘ
military construction ⓘ transportation infrastructure ⓘ water resources projects ⓘ |
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: Morrison-Knudsen Description of subject: Morrison-Knudsen was a major American engineering and construction company known for building large-scale infrastructure projects worldwide, including dams, bridges, and transportation systems.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Morrison-Knudsen
linked to: Morrison-Knudsen
subject linked to:
R44 subway cars (historical)
linked to: Morrison-Knudsen
linked to: Morrison-Knudsen
linked to: Morrison-Knudsen