Illinois Route 154
highway in Illinois
Illinois Route 154 is an east–west state road in southern Illinois. It runs from Illinois Route 3 in Red Bud to Illinois Route 37 in Whittington, over a distance of 63.63 miles (102.40 km).
Route description
Illinois 154 is the main east–west road through Pinckneyville. Just before intersecting Interstate 57 on the eastern end, it bridges Rend Lake. Illinois 154 has overlaps Illinois Route 13 and Illinois Route 148.
History
SBI Route 154 originally ran from Pinckneyville to U.S. Route 51 north of Sunfield. In 1937 it was extended west to Red Bud, replacing Illinois Route 170 and Illinois Route 13 in the process. In 1984, Illinois 154 was extended east on a new road over Rend Lake, replacing IL 183. The original 1926 routing of Illinois 183 is most likely underwater.
Begin with the source’s own compact description: “Illinois Route 154” is highway in Illinois. The dossier treats that line as a proposition to test through Illinois, Route and highway, not as a finished interpretation.
Why this record matters
The phrase “highway in Illinois” 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.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Apr 28, 2026. The linked authority identifier is Q1057302. Authority coordinates are 38.083, -89.448. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1937, 1984 and 1926.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. 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 “Illinois Route 154”, its source revision and the description used here.
- Expand the search: follow Illinois Route 154 primary sources, Illinois Route 154 archive and Illinois 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 “Illinois Route 154”?
- 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 “Illinois Route 154” 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.