Sixth Street Viaduct
E369661
The Sixth Street Viaduct is an iconic Los Angeles bridge known for spanning the downtown area and connecting the Arts District with Boyle Heights.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Sixth Street Viaduct canonical | 3 |
| 6th Street Viaduct | 1 |
| original Sixth Street Viaduct | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3554025 — 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: Sixth Street Viaduct Context triple: [Los Angeles River, crossedBy, Sixth Street Viaduct]
-
A.
Riverside Drive Viaduct
Riverside Drive Viaduct is an elevated steel and concrete roadway structure in Manhattan that carries Riverside Drive above the Amtrak rail lines and low-lying areas along the Hudson River.
-
B.
Los Angeles River Viaducts
The Los Angeles River Viaducts are a series of historic bridges and overpasses that span the Los Angeles River, many featuring iconic early-20th-century concrete and Art Deco designs.
-
C.
Park Avenue Viaduct
The Park Avenue Viaduct is an elevated roadway in Midtown Manhattan that carries traffic around Grand Central Terminal, connecting Park Avenue across 42nd Street.
-
D.
Spokane Street Viaduct
The Spokane Street Viaduct is an elevated roadway in Seattle that connects Interstate 5 to the West Seattle Bridge, carrying traffic over the SoDo industrial district.
-
E.
Nimitz Freeway
The Nimitz Freeway is a major segment of Interstate 880 running through the East Bay region of the San Francisco Bay Area, serving as a key north–south transportation corridor.
- 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: Sixth Street Viaduct Target entity description: The Sixth Street Viaduct is an iconic Los Angeles bridge known for spanning the downtown area and connecting the Arts District with Boyle Heights.
-
A.
Riverside Drive Viaduct
Riverside Drive Viaduct is an elevated steel and concrete roadway structure in Manhattan that carries Riverside Drive above the Amtrak rail lines and low-lying areas along the Hudson River.
-
B.
Los Angeles River Viaducts
The Los Angeles River Viaducts are a series of historic bridges and overpasses that span the Los Angeles River, many featuring iconic early-20th-century concrete and Art Deco designs.
-
C.
Park Avenue Viaduct
The Park Avenue Viaduct is an elevated roadway in Midtown Manhattan that carries traffic around Grand Central Terminal, connecting Park Avenue across 42nd Street.
-
D.
Spokane Street Viaduct
The Spokane Street Viaduct is an elevated roadway in Seattle that connects Interstate 5 to the West Seattle Bridge, carrying traffic over the SoDo industrial district.
-
E.
Nimitz Freeway
The Nimitz Freeway is a major segment of Interstate 880 running through the East Bay region of the San Francisco Bay Area, serving as a key north–south transportation corridor.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
bridge
ⓘ
viaduct ⓘ |
| carries |
bicycle traffic
ⓘ
pedestrian traffic ⓘ vehicular traffic ⓘ |
| connects |
Arts District
ⓘ
Boyle Heights ⓘ |
| constructionStart | 2016 ⓘ |
| crosses | Los Angeles River ⓘ |
| demolitionOfPreviousBridge | 2016 ⓘ |
| designer | Michael Maltzan Architecture ⓘ |
| hasAlternativeName |
6th Street Bridge
NERFINISHED
ⓘ
6th Street Viaduct ⓘ
linked to:
Sixth Street Viaduct
Sixth Street Bridge NERFINISHED ⓘ |
| hasCulturalSignificance |
Los Angeles landmark
ⓘ
frequent filming location ⓘ |
| hasDesign |
concrete tied-arch bridge
ⓘ
viaduct with multiple arches ⓘ |
| hasFeature |
LED lighting
ⓘ
bicycle lanes ⓘ multiple ribbon-like arches ⓘ pedestrian walkways ⓘ |
| hasJurisdiction |
City of Los Angeles
ⓘ
linked to:
Los Angeles
|
| hasLaneCount | 4 ⓘ |
| hasOfficialName | Sixth Street Viaduct ⓘ |
| hasSpeedLimit | 35 mph ⓘ |
| isIconicFor |
Los Angeles cityscape
ⓘ
connection between Eastside and Downtown ⓘ |
| isPartOf | Los Angeles transportation infrastructure ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
Los Angeles ⓘ United States ⓘ
linked to:
United States of America
|
| maintainedBy |
City of Los Angeles
ⓘ
linked to:
Los Angeles
Los Angeles Bureau of Engineering ⓘ
linked to:
City of Los Angeles Bureau of Engineering
|
| material |
concrete
ⓘ
steel ⓘ |
| opened | 2022 ⓘ |
| ownedBy |
City of Los Angeles
ⓘ
linked to:
Los Angeles
|
| partOf | Downtown Los Angeles ⓘ |
| previousBridgeClosed | 2016 ⓘ |
| previousBridgeDemolishedDueTo | alkali-silica reaction structural issues ⓘ |
| previousBridgeInstanceOf | concrete viaduct ⓘ |
| previousBridgeLocation | Los Angeles ⓘ |
| previousBridgeOpened | 1932 ⓘ |
| projectCost | approximately 588 million USD ⓘ |
| replaced |
original Sixth Street Viaduct
ⓘ
linked to:
Sixth Street Viaduct
|
| spans |
industrial areas
ⓘ
railroad tracks ⓘ |
| structuralEngineer | HNTB ⓘ |
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: Sixth Street Viaduct Description of subject: The Sixth Street Viaduct is an iconic Los Angeles bridge known for spanning the downtown area and connecting the Arts District with Boyle Heights.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Sixth Street Viaduct
linked to: Sixth Street Viaduct