New York State Route 100
State highway in Westchester New York, US
New York State Route 100 (NY 100) is a major north–south state highway in Westchester County, New York, in the United States. It begins parallel to Interstate 87 (I-87) at a junction with the Cross County Parkway in the city of Yonkers and runs through most of the length of the county up to U.S. Route 202 (US 202) in the town of Somers. NY 100 was designated as part of the 1930 renumbering of state highways in New York. Prior to becoming a state road, various sections of NY 100 were part of several important early roads in the county.
Route description
NY 100 begins in the city of Yonkers as Central Park Avenue (almost always just called "Central Avenue") at exit 4 of the New York State Thruway (I-87). This portion of Central Avenue is maintained by Westchester County as County Route 47II (CR 47II), an unsigned reference route. Central Avenue continues south as a service road for I-87 until The Bronx, where it splits from I-87 shortly after entering the city, and becomes Jerome Avenue, a major surface road in the West Bronx. NY 100 diverges from I-87 just north of exit 5 and heads northeast, crossing over the Sprain Brook Parkway about 0.6-mile (1.0 km) beyond the split. Central Avenue has an interchange with Tuckahoe Road shortly after the Sprain Brook Parkway. The road continues through Yonkers in the area between the Grassy Sprain Reservoir and the Bronx River, with many retail establishments lining both sides.
Begin with the source’s own compact description: “New York State Route 100” is state highway in Westchester New York, US. The dossier treats that line as a proposition to test through York, State and Route, not as a finished interpretation.
Why this record matters
The phrase “state highway in Westchester New York, US” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 19, 2026. The linked authority identifier is Q2486199. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1930.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “New York State Route 100”, its source revision and the description used here.
- Expand the search: follow New York State Route 100 primary sources, New York State Route 100 archive and York research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “New York State Route 100”?
- What terminology or title could unlock a more precise catalogue search?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “New York State Route 100” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.