Morrison Bridge
E359502
The Morrison Bridge is a bascule bridge spanning the Willamette River in downtown Portland, Oregon, carrying both vehicle and pedestrian traffic.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Morrison Bridge canonical | 6 |
| Morrison Bridge (original 1887 structure) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2227737 — 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 Bridge Context triple: [Portland bridge system, hasPart, Morrison Bridge]
-
A.
Trinity Bridge
Trinity Bridge is a distinctive three-way footbridge in Greater Manchester, England, designed by architect Santiago Calatrava to link Salford and Manchester across the River Irwell.
-
B.
Trinity Bridge
Trinity Bridge is a historic steel bascule bridge in Saint Petersburg, Russia, known for its ornate design and role as a major crossing over the Neva River near the city’s central landmarks.
-
C.
Brooks Bridge
Brooks Bridge is a highway bridge in Fort Walton Beach, Florida, that carries U.S. Route 98 over the Santa Rosa Sound, connecting the mainland to Okaloosa Island.
-
D.
Leatherhead Bridge
Leatherhead Bridge is a historic road bridge spanning the River Mole in Leatherhead, Surrey, England.
-
E.
John Frost Bridge
The John Frost Bridge is a historically significant road bridge in Arnhem, Netherlands, best known as a key battle site during Operation Market Garden in World War II.
- 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 Bridge Target entity description: The Morrison Bridge is a bascule bridge spanning the Willamette River in downtown Portland, Oregon, carrying both vehicle and pedestrian traffic.
-
A.
Trinity Bridge
Trinity Bridge is a distinctive three-way footbridge in Greater Manchester, England, designed by architect Santiago Calatrava to link Salford and Manchester across the River Irwell.
-
B.
Trinity Bridge
Trinity Bridge is a historic steel bascule bridge in Saint Petersburg, Russia, known for its ornate design and role as a major crossing over the Neva River near the city’s central landmarks.
-
C.
Brooks Bridge
Brooks Bridge is a highway bridge in Fort Walton Beach, Florida, that carries U.S. Route 98 over the Santa Rosa Sound, connecting the mainland to Okaloosa Island.
-
D.
Leatherhead Bridge
Leatherhead Bridge is a historic road bridge spanning the River Mole in Leatherhead, Surrey, England.
-
E.
John Frost Bridge
The John Frost Bridge is a historically significant road bridge in Arnhem, Netherlands, best known as a key battle site during Operation Market Garden in World War II.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
bascule bridge
ⓘ
moveable bridge ⓘ road bridge ⓘ |
| carries |
motor vehicle traffic
ⓘ
pedestrian traffic ⓘ |
| connects |
downtown Portland
ⓘ
east side of Portland ⓘ |
| crosses | Willamette River ⓘ |
| hasApproach |
east bank of Willamette River
ⓘ
west bank of Willamette River ⓘ |
| hasClearanceBelow | suitable for river traffic when raised ⓘ |
| hasDesign | double-leaf bascule ⓘ |
| hasFunction |
river crossing
ⓘ
urban transportation link ⓘ |
| hasNumberOfSpans | 3 ⓘ |
| hasOwner | Multnomah County ⓘ |
| hasSidewalks | yes ⓘ |
| hasToll | no ⓘ |
| isInWaterBody | Willamette River ⓘ |
| locatedIn |
Multnomah County
ⓘ
surface form:
Multnomah County, Oregon
Oregon ⓘ Portland ⓘ
surface form:
Portland, Oregon
United States of America ⓘ
surface form:
United States
|
| locatedOn | Morrison Street NERFINISHED ⓘ |
| maintainedBy | Multnomah County ⓘ |
| material | steel ⓘ |
| namedAfter | Morrison Street NERFINISHED ⓘ |
| opened | 1958 ⓘ |
| partOf | Portland bridge system ⓘ |
| replaced | earlier Morrison bridges ⓘ |
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 Bridge Description of subject: The Morrison Bridge is a bascule bridge spanning the Willamette River in downtown Portland, Oregon, carrying both vehicle and pedestrian traffic.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Morrison Bridge (original 1887 structure)