Washington State Route 99
E171672
Washington State Route 99 is a major north–south highway in western Washington that runs through the Seattle metropolitan area, historically serving as the region’s primary arterial route before Interstate 5.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Washington State Route 99 canonical | 6 |
| State Route 99 in Federal Way | 1 |
| State Route 99 in Seattle area | 1 |
| U.S. Route 99 in Washington | 1 |
| Washington State Route 99 (on part of former alignment) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1190938 — 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: Washington State Route 99 Context triple: [Federal Way, Washington, majorHighway, Washington State Route 99]
-
A.
Washington State Route 18
Washington State Route 18 is a major east–west highway in western Washington that connects the Seattle–Tacoma metropolitan area to Interstate 90 near Snoqualmie.
-
B.
Oregon Route 99W
Oregon Route 99W is a state highway in western Oregon that runs through the Willamette Valley, serving as a major north–south route parallel to Interstate 5.
-
C.
Oregon Route 8
Oregon Route 8 is a state highway in northwestern Oregon that runs through the Tualatin Valley, connecting several suburban communities west of Portland.
-
D.
Oregon Route 38
Oregon Route 38 is a state highway in Oregon that runs east–west between the coast and Interstate 5, following the Umpqua River and serving as a key route through Douglas County.
-
E.
Oregon Route 126
Oregon Route 126 is a major east–west state highway in Oregon that connects the Eugene–Springfield area with coastal and central parts of the state.
- 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: Washington State Route 99 Target entity description: Washington State Route 99 is a major north–south highway in western Washington that runs through the Seattle metropolitan area, historically serving as the region’s primary arterial route before Interstate 5.
-
A.
Washington State Route 18
Washington State Route 18 is a major east–west highway in western Washington that connects the Seattle–Tacoma metropolitan area to Interstate 90 near Snoqualmie.
-
B.
Oregon Route 99W
Oregon Route 99W is a state highway in western Oregon that runs through the Willamette Valley, serving as a major north–south route parallel to Interstate 5.
-
C.
Oregon Route 8
Oregon Route 8 is a state highway in northwestern Oregon that runs through the Tualatin Valley, connecting several suburban communities west of Portland.
-
D.
Oregon Route 38
Oregon Route 38 is a state highway in Oregon that runs east–west between the coast and Interstate 5, following the Umpqua River and serving as a key route through Douglas County.
-
E.
Oregon Route 126
Oregon Route 126 is a major east–west state highway in Oregon that connects the Eugene–Springfield area with coastal and central parts of the state.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
north–south highway
ⓘ
road transportation infrastructure ⓘ state highway ⓘ |
| abbreviation |
SR 99
ⓘ
WA 99 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses |
Duwamish River
ⓘ
surface form:
Duwamish Waterway
|
| formerDesignation |
Federal Highway U.S. Route 99
ⓘ
surface form:
U.S. Route 99
|
| formerFunction |
primary highway connection between Seattle and Everett before Interstate 5
ⓘ
primary highway connection between Seattle and Tacoma before Interstate 5 ⓘ |
| hasJunctionWith |
Interstate 5
ⓘ
State Route 104 ⓘ State Route 509 ⓘ State Route 518 ⓘ State Route 525 ⓘ |
| hasStructure |
Alaskan Way Viaduct
ⓘ
surface form:
Alaskan Way Viaduct (former)
State Route 99 Tunnel ⓘ |
| historicalRole | primary north–south arterial route in the Seattle region before Interstate 5 ⓘ |
| locatedIn |
Seattle metropolitan area
ⓘ
western Washington ⓘ |
| maintainedBy | Washington State Department of Transportation ⓘ |
| namedSegment |
Aurora Avenue North
ⓘ
surface form:
Aurora Avenue North in Seattle
Evergreen Way in Everett ⓘ Pacific Highway South in south King County ⓘ |
| openedStructure | State Route 99 Tunnel in 2019 ⓘ |
| parallelTo | Interstate 5 ⓘ |
| partOf |
Washington State Routes
ⓘ
surface form:
Washington State Route system
|
| passesNear | Seattle–Tacoma International Airport ⓘ |
| replacedStructure |
Alaskan Way Viaduct
ⓘ
surface form:
Alaskan Way Viaduct with State Route 99 Tunnel
|
| roadType |
limited-access highway in some segments
ⓘ
surface arterial in some segments ⓘ |
| runsThrough |
Edmonds, Washington
ⓘ
surface form:
Edmonds
Everett ⓘ Federal Way ⓘ Fife ⓘ Kent ⓘ Lynnwood ⓘ SeaTac ⓘ Seattle ⓘ Shoreline ⓘ Tukwila ⓘ |
| serves |
commuter traffic in the Seattle metropolitan area
ⓘ
freight traffic in the Seattle metropolitan area ⓘ |
| state | Washington ⓘ |
| transportationCorridorFor |
King County
ⓘ
Pierce County ⓘ Snohomish County ⓘ |
| urban | true ⓘ |
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: Washington State Route 99 Description of subject: Washington State Route 99 is a major north–south highway in western Washington that runs through the Seattle metropolitan area, historically serving as the region’s primary arterial route before Interstate 5.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Federal Way, Washington
this entity surface form:
State Route 99 in Seattle area
this entity surface form:
State Route 99 in Federal Way
subject surface form:
U.S. Route 99
subject surface form:
U.S. Route 99
this entity surface form:
Washington State Route 99 (on part of former alignment)
this entity surface form:
U.S. Route 99 in Washington