San Bernardino Tunnel
E602239
The San Bernardino Tunnel is a major road tunnel in the Swiss Alps that provides a key north–south transit route between German-speaking and Italian-speaking Switzerland.
All labels observed (2)
| Label | Occurrences |
|---|---|
| San Bernardino Tunnel canonical | 1 |
| San Bernardino road tunnel | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6572040 — 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: San Bernardino Tunnel Context triple: [A13 motorway (Switzerland), hasTunnels, San Bernardino Tunnel]
-
A.
Tehachapi Crossing tunnels
The Tehachapi Crossing tunnels are a series of large water conveyance tunnels that carry California Aqueduct flows beneath the Tehachapi Mountains as part of the State Water Project.
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B.
Patterson Pass Tunnel
Patterson Pass Tunnel is a key water conveyance tunnel in California that carries supplies for the State Water Project’s South Bay Aqueduct through the Diablo Range.
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C.
Eisenhower–Johnson Memorial Tunnel
The Eisenhower–Johnson Memorial Tunnel is a high-altitude vehicular tunnel through the Rocky Mountains in Colorado, carrying Interstate 70 beneath the Continental Divide.
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D.
O'Neill Tunnel
The O'Neill Tunnel is a major highway tunnel in downtown Boston that carries Interstate 93 beneath the city as part of the Big Dig project.
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E.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
- 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: San Bernardino Tunnel Target entity description: The San Bernardino Tunnel is a major road tunnel in the Swiss Alps that provides a key north–south transit route between German-speaking and Italian-speaking Switzerland.
-
A.
Tehachapi Crossing tunnels
The Tehachapi Crossing tunnels are a series of large water conveyance tunnels that carry California Aqueduct flows beneath the Tehachapi Mountains as part of the State Water Project.
-
B.
Patterson Pass Tunnel
Patterson Pass Tunnel is a key water conveyance tunnel in California that carries supplies for the State Water Project’s South Bay Aqueduct through the Diablo Range.
-
C.
Eisenhower–Johnson Memorial Tunnel
The Eisenhower–Johnson Memorial Tunnel is a high-altitude vehicular tunnel through the Rocky Mountains in Colorado, carrying Interstate 70 beneath the Continental Divide.
-
D.
O'Neill Tunnel
The O'Neill Tunnel is a major highway tunnel in downtown Boston that carries Interstate 93 beneath the city as part of the Big Dig project.
-
E.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf | road tunnel ⓘ |
| bypasses | San Bernardino Pass NERFINISHED ⓘ |
| connects |
German-speaking Switzerland
ⓘ
Hinterrhein NERFINISHED ⓘ Italian-speaking Switzerland NERFINISHED ⓘ Mesolcina NERFINISHED ⓘ |
| constructionStart | 1962 ⓘ |
| country | Switzerland ⓘ |
| elevation |
around 1600 metres above sea level
ⓘ
around 5250 feet above sea level ⓘ |
| hasDirection | bidirectional ⓘ |
| hasSafetyUpgrades | yes ⓘ |
| hasSpeedLimit | typically 80 km/h ⓘ |
| importance |
key alternative to Gotthard road tunnel
ⓘ
major north–south transit route in Switzerland ⓘ |
| lanes | 2 ⓘ |
| languageRegionNorth | German ⓘ |
| languageRegionSouth | Italian ⓘ |
| length |
approximately 4.1 miles
ⓘ
approximately 6.6 kilometres ⓘ |
| locatedIn |
Swiss Alps
NERFINISHED
ⓘ
canton of Graubünden ⓘ |
| locatedNear |
Hinterrhein River
NERFINISHED
ⓘ
village of San Bernardino ⓘ |
| locatedOn | A13 motorway NERFINISHED ⓘ |
| namedAfter | San Bernardino Pass NERFINISHED ⓘ |
| opened | 1967 ⓘ |
| operator | Federal Roads Office of Switzerland NERFINISHED ⓘ |
| partOf | European route E43 NERFINISHED ⓘ |
| region | Alpine transit corridor NERFINISHED ⓘ |
| roadNumber | A13 NERFINISHED ⓘ |
| roadType | national motorway ⓘ |
| safetyUpgrade |
emergency exits
ⓘ
fire safety measures ⓘ ventilation improvements ⓘ |
| toll | no separate tunnel toll ⓘ |
| trafficType | road traffic ⓘ |
| usedFor |
long-distance freight traffic
ⓘ
tourist 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: San Bernardino Tunnel Description of subject: The San Bernardino Tunnel is a major road tunnel in the Swiss Alps that provides a key north–south transit route between German-speaking and Italian-speaking Switzerland.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
San Bernardino road tunnel