County Route E64 (Nassau County, New York)
county highway in Nassau County, New York

County Route E64 is a major, 4.51-mile (7.26 km) county road between the Incorporated Villages of Mineola and Flower Hill, in Nassau County, on Long Island, New York. It is owned by Nassau County and maintained by the Nassau County Department of Public Works.
The portion of the CR E64 south of the Long Island Expressway (Interstate 495) is known as Willis Avenue, while the portion from the Long Island Expressway north to Northern Boulevard (NY 25A) is known as Mineola Avenue. The portion of the road in Roslyn Heights is honorably named Langone Brothers Avenue, after two local firefighters killed on September 11, 2001.
A small, bypassed section of Willis Avenue exists in Albertson as a local street; this original alignment is now known as Old Willis Avenue.
Route description
CR E64 begins as Willis Avenue at Old Country Road (CR 25) in Mineola. It travels north-northwest underneath the Long Island Rail Road's Main Line and Oyster Bay Branch, then intersecting Second Street (CR E23) shortly thereafter. It then continues and intersects First Street (CR C78) one block to the north-northwest. It then continues straight, eventually intersecting Jericho Turnpike (NY 25). It then continues straight, towards the north-northwest, soon entering the Incorporated Village of Williston Park and intersecting Hillside Avenue (NY 25B).
Begin with the source’s own compact description: “County Route E64 (Nassau County, New York)” is county highway in Nassau County, New York. The dossier treats that line as a proposition to test through County, Route and Nassau, not as a finished interpretation.
Why this record matters
The phrase “county highway in Nassau County, New York” 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.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Jul 30, 2026. The linked authority identifier is Q124152868. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2001.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. 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
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “County Route E64 (Nassau County, New York)”, its source revision and the description used here.
- Expand the search: follow County Route E64 (Nassau County, New York) primary sources, County Route E64 (Nassau County, New York) archive and County 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 “County Route E64 (Nassau County, New York)”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “County Route E64 (Nassau County, New York)” 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.