Hurricane Gulch Bridge
E412036
Hurricane Gulch Bridge is a historic steel arch railroad bridge in Alaska that carries the Alaska Railroad across the deep Hurricane Gulch canyon.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hurricane Gulch Bridge canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2550965 — 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: Hurricane Gulch Bridge Context triple: [Alaska Railroad, hasBridge, Hurricane Gulch Bridge]
-
A.
Bixby Creek Bridge
Bixby Creek Bridge is an iconic reinforced-concrete arch bridge along California’s scenic Highway 1, renowned for its dramatic coastal setting and frequent appearance in photography and film.
-
B.
Newkirk Viaduct
The Newkirk Viaduct is a historic 19th-century railroad bridge in Philadelphia that played a key role in early rail travel along the Northeast Corridor.
-
C.
Strawberry Creek bridge
Strawberry Creek bridge is a pedestrian bridge on the UC Berkeley campus that spans Strawberry Creek near Sather Gate, serving as a key walkway between central campus areas.
-
D.
Garcon Point Bridge
Garcon Point Bridge is a toll bridge in Florida that spans Pensacola Bay, connecting the Garcon Point peninsula with the mainland near Milton and Gulf Breeze.
-
E.
Homer M. Hadley Memorial Bridge
The Homer M. Hadley Memorial Bridge is a major floating bridge in Washington State that carries Interstate 90 across Lake Washington between Seattle and Mercer Island.
- 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: Hurricane Gulch Bridge Target entity description: Hurricane Gulch Bridge is a historic steel arch railroad bridge in Alaska that carries the Alaska Railroad across the deep Hurricane Gulch canyon.
-
A.
Bixby Creek Bridge
Bixby Creek Bridge is an iconic reinforced-concrete arch bridge along California’s scenic Highway 1, renowned for its dramatic coastal setting and frequent appearance in photography and film.
-
B.
Newkirk Viaduct
The Newkirk Viaduct is a historic 19th-century railroad bridge in Philadelphia that played a key role in early rail travel along the Northeast Corridor.
-
C.
Strawberry Creek bridge
Strawberry Creek bridge is a pedestrian bridge on the UC Berkeley campus that spans Strawberry Creek near Sather Gate, serving as a key walkway between central campus areas.
-
D.
Garcon Point Bridge
Garcon Point Bridge is a toll bridge in Florida that spans Pensacola Bay, connecting the Garcon Point peninsula with the mainland near Milton and Gulf Breeze.
-
E.
Homer M. Hadley Memorial Bridge
The Homer M. Hadley Memorial Bridge is a major floating bridge in Washington State that carries Interstate 90 across Lake Washington between Seattle and Mercer Island.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
deck arch bridge
ⓘ
historic bridge ⓘ railroad bridge ⓘ steel arch bridge ⓘ |
| approximateDistanceFromAnchorage | about 180 miles by rail ⓘ |
| approximateDistanceFromFairbanks | about 260 miles by rail ⓘ |
| carriedTransportMode | rail ⓘ |
| carries | Alaska Railroad ⓘ |
| climateZone | subarctic climate ⓘ |
| constructionMethod | cantilevered erection from both sides of the canyon ⓘ |
| constructionStart | 1920 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses | Hurricane Gulch ⓘ |
| deckType | open deck for railroad track ⓘ |
| design | steel deck arch ⓘ |
| engineeringType | riveted steel construction ⓘ |
| eraOfConstruction | early 1920s ⓘ |
| function | to carry trains across Hurricane Gulch canyon ⓘ |
| hasNumberOfTracks | single track ⓘ |
| heightAboveCanyonFloor |
approximately 296 feet
ⓘ
approximately 90 meters ⓘ |
| heritageStatus | considered a significant historic engineering structure in Alaska ⓘ |
| historicSignificance | early 20th-century large steel arch railroad bridge in Alaska ⓘ |
| locatedAlong | George Parks Highway corridor (nearby, parallel route) ⓘ |
| locatedIn |
Alaska
ⓘ
Matanuska-Susitna Borough ⓘ |
| locatedNear |
Denali National Park and Preserve
ⓘ
surface form:
Denali National Park region
|
| locatedOnRoute | rail line between Anchorage and Fairbanks ⓘ |
| mainSpanLength |
approximately 280 meters
ⓘ
approximately 918 feet ⓘ |
| maintainedBy |
Alaska Railroad
ⓘ
surface form:
Alaska Railroad Corporation
|
| material | steel ⓘ |
| notableFor | being one of the highest railroad bridges in the United States at the time of its completion ⓘ |
| opened | 1921 ⓘ |
| owner |
Alaska Railroad
ⓘ
surface form:
Alaska Railroad Corporation
|
| partOf |
Alaska Railroad
ⓘ
surface form:
Alaska Railroad main line
|
| railLine |
Alaska Railroad
ⓘ
surface form:
Alaska Railroad mainline between Talkeetna and Cantwell
|
| railOperator | Alaska Railroad ⓘ |
| region | Interior Alaska ⓘ |
| status | in use ⓘ |
| structureType | arch bridge ⓘ |
| subjectTo |
extreme cold temperatures
ⓘ
freeze-thaw cycles ⓘ high winds in the canyon ⓘ |
| usedFor |
freight rail traffic
ⓘ
passenger rail traffic ⓘ |
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: Hurricane Gulch Bridge Description of subject: Hurricane Gulch Bridge is a historic steel arch railroad bridge in Alaska that carries the Alaska Railroad across the deep Hurricane Gulch canyon.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.