Boustead Tunnel
E528282
Boustead Tunnel is a key water conveyance tunnel in Colorado that diverts Western Slope water under the Continental Divide to supply the Arkansas River basin.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Boustead Tunnel canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5624178 — 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: Boustead Tunnel Context triple: [Fryingpan–Arkansas Project, majorComponent, Boustead Tunnel]
-
A.
Sitra Causeway
Sitra Causeway is a major roadway bridge in Bahrain that links the island of Sitra to the main island, facilitating key commuter and industrial traffic.
-
B.
Johor–Singapore Causeway
The Johor–Singapore Causeway is a major road and rail link connecting Malaysia and Singapore, serving as one of the busiest border crossings in the world.
-
C.
Malaysia–Singapore Second Link
The Malaysia–Singapore Second Link is a major bridge and expressway connection that serves as an alternative road crossing between Malaysia and Singapore, easing congestion on the main Johor–Singapore Causeway.
-
D.
Wawona Tunnel
Wawona Tunnel is a historic highway tunnel in Yosemite National Park that serves as the dramatic western gateway to the famous Tunnel View overlook of Yosemite Valley.
-
E.
Tenda road tunnel
The Tenda road tunnel is a major Alpine tunnel connecting France and Italy beneath the Col de Tende, facilitating cross-border road traffic through the Maritime Alps.
- 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: Boustead Tunnel Target entity description: Boustead Tunnel is a key water conveyance tunnel in Colorado that diverts Western Slope water under the Continental Divide to supply the Arkansas River basin.
-
A.
Sitra Causeway
Sitra Causeway is a major roadway bridge in Bahrain that links the island of Sitra to the main island, facilitating key commuter and industrial traffic.
-
B.
Johor–Singapore Causeway
The Johor–Singapore Causeway is a major road and rail link connecting Malaysia and Singapore, serving as one of the busiest border crossings in the world.
-
C.
Malaysia–Singapore Second Link
The Malaysia–Singapore Second Link is a major bridge and expressway connection that serves as an alternative road crossing between Malaysia and Singapore, easing congestion on the main Johor–Singapore Causeway.
-
D.
Wawona Tunnel
Wawona Tunnel is a historic highway tunnel in Yosemite National Park that serves as the dramatic western gateway to the famous Tunnel View overlook of Yosemite Valley.
-
E.
Tenda road tunnel
The Tenda road tunnel is a major Alpine tunnel connecting France and Italy beneath the Col de Tende, facilitating cross-border road traffic through the Maritime Alps.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
transmountain diversion
ⓘ
water conveyance tunnel ⓘ |
| associatedProject | Fryingpan-Arkansas Project NERFINISHED ⓘ |
| basinSupplied | Arkansas River NERFINISHED ⓘ |
| completionDate | 1960s ⓘ |
| constructionStartDate | 1960s ⓘ |
| continent | North America ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses |
Continental Divide of the Americas
NERFINISHED
ⓘ
Sawatch Range NERFINISHED ⓘ |
| divertsWaterFrom | Western Slope of Colorado NERFINISHED ⓘ |
| divertsWaterTo | Arkansas River basin NERFINISHED ⓘ |
| hasLegalFramework |
Colorado water law
ⓘ
interstate water compacts ⓘ |
| locatedIn |
Colorado
ⓘ
Rocky Mountains NERFINISHED ⓘ |
| managesWaterFor |
industrial use
ⓘ
irrigation ⓘ municipal water supply ⓘ |
| namedAfter | Harold D. Boustead NERFINISHED ⓘ |
| operator | U.S. Bureau of Reclamation NERFINISHED ⓘ |
| partOf | Fryingpan-Arkansas Project NERFINISHED ⓘ |
| primaryFunction |
water diversion
ⓘ
water supply ⓘ |
| regulates | interbasin water transfer ⓘ |
| status | operational ⓘ |
| supports | hydroelectric power generation ⓘ |
| uses | gravity flow ⓘ |
| waterDestinationRegion | Arkansas River basin NERFINISHED ⓘ |
| waterSourceRegion | Colorado River basin NERFINISHED ⓘ |
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: Boustead Tunnel Description of subject: Boustead Tunnel is a key water conveyance tunnel in Colorado that diverts Western Slope water under the Continental Divide to supply the Arkansas River basin.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.