Alameda Creek
E620568
Alameda Creek is a major waterway in the East Bay region of the San Francisco Bay Area, flowing from the Diablo Range to San Francisco Bay and serving as an important ecological and flood-control corridor.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Alameda Creek canonical | 3 |
| Alameda Creek to San Francisco Bay | 1 |
| Alameda Creek watershed | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6811423 — 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: Alameda Creek Context triple: [Niles Canyon, traversedBy, Alameda Creek]
-
A.
East Bay River
East Bay River is a small river in Florida’s Panhandle that flows through Santa Rosa County before emptying into Escambia Bay.
-
B.
San Mateo Creek
San Mateo Creek is a waterway in San Mateo County, California, that drains the Crystal Springs Reservoir and flows toward San Francisco Bay.
-
C.
Suisun Slough
Suisun Slough is a tidal waterway and wetland channel in Solano County, California, forming part of the Sacramento–San Joaquin River Delta estuarine system.
-
D.
Alviso Slough
Alviso Slough is a tidal waterway in the southern San Francisco Bay, known for its wetlands, wildlife habitat, and role in regional flood control and recreation.
-
E.
Alamitos Creek
Alamitos Creek is a stream in Santa Clara County, California, that flows through the Almaden Valley area and feeds into the Guadalupe River within the San Francisco Bay watershed.
- 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: Alameda Creek Target entity description: Alameda Creek is a major waterway in the East Bay region of the San Francisco Bay Area, flowing from the Diablo Range to San Francisco Bay and serving as an important ecological and flood-control corridor.
-
A.
East Bay River
East Bay River is a small river in Florida’s Panhandle that flows through Santa Rosa County before emptying into Escambia Bay.
-
B.
San Mateo Creek
San Mateo Creek is a waterway in San Mateo County, California, that drains the Crystal Springs Reservoir and flows toward San Francisco Bay.
-
C.
Suisun Slough
Suisun Slough is a tidal waterway and wetland channel in Solano County, California, forming part of the Sacramento–San Joaquin River Delta estuarine system.
-
D.
Alviso Slough
Alviso Slough is a tidal waterway in the southern San Francisco Bay, known for its wetlands, wildlife habitat, and role in regional flood control and recreation.
-
E.
Alamitos Creek
Alamitos Creek is a stream in Santa Clara County, California, that flows through the Almaden Valley area and feeds into the Guadalupe River within the San Francisco Bay watershed.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | creek ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses | Hayward Fault zone NERFINISHED ⓘ |
| drainageBasin | San Francisco Bay watershed NERFINISHED ⓘ |
| ecologicalRole |
anadromous fish migration corridor
ⓘ
riparian habitat corridor ⓘ |
| flowsFrom | Diablo Range NERFINISHED ⓘ |
| flowsInto | San Francisco Bay NERFINISHED ⓘ |
| hasAdjacentProtectedArea |
Alameda Creek Regional Trail
NERFINISHED
ⓘ
Coyote Hills Regional Park NERFINISHED ⓘ Don Edwards San Francisco Bay National Wildlife Refuge NERFINISHED ⓘ |
| hasInfrastructure |
Alameda Creek Diversion Dam
NERFINISHED
ⓘ
Alameda Creek Flood Control Channel NERFINISHED ⓘ BART bridge over Alameda Creek ⓘ trail bridges of Alameda Creek Regional Trail ⓘ |
| hasTributary |
Arroyo Mocho
NERFINISHED
ⓘ
Arroyo Valle NERFINISHED ⓘ Arroyo de la Laguna NERFINISHED ⓘ Calaveras Creek NERFINISHED ⓘ Crandall Creek NERFINISHED ⓘ Line A (Alameda County Flood Control Channel) NERFINISHED ⓘ Patterson Creek NERFINISHED ⓘ San Antonio Creek (Alameda County) NERFINISHED ⓘ Stonybrook Creek NERFINISHED ⓘ |
| historicalEcology | historic steelhead trout run ⓘ |
| locatedIn |
Alameda County
NERFINISHED
ⓘ
California, United States ⓘ
surface form:
California
Contra Costa County NERFINISHED ⓘ East Bay NERFINISHED ⓘ San Francisco Bay Area ⓘ |
| managedBy |
Alameda County Flood Control and Water Conservation District
NERFINISHED
ⓘ
San Francisco Public Utilities Commission NERFINISHED ⓘ |
| mouthLocation |
San Francisco Bay
NERFINISHED
ⓘ
near Fremont, California ⓘ |
| notableFeature | major waterway of the East Bay ⓘ |
| passesThrough |
Fremont, California
NERFINISHED
ⓘ
Niles Canyon NERFINISHED ⓘ Sunol Valley NERFINISHED ⓘ |
| regionServed |
Tri-Valley area
NERFINISHED
ⓘ
southern Alameda County ⓘ |
| sourceRegion | Diablo Range, California NERFINISHED ⓘ |
| subjectOf | fish passage restoration projects ⓘ |
| usedFor |
fish habitat
ⓘ
flood control ⓘ recreation ⓘ water supply conveyance ⓘ |
| watershedArea | largest watershed in Alameda County ⓘ |
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: Alameda Creek Description of subject: Alameda Creek is a major waterway in the East Bay region of the San Francisco Bay Area, flowing from the Diablo Range to San Francisco Bay and serving as an important ecological and flood-control corridor.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Alameda Creek watershed
this entity surface form:
Alameda Creek to San Francisco Bay