Dargans Deviation
section of the original Main Western railway line

The Dargans Deviation was a section of the original Main Western railway line over the Blue Mountains in New South Wales, Australia. It was constructed from 1896 to 1897 in an effort to ease the grades of the original alignment (1 in 33) from before Newnes Junction to Clarence, with a ruling grade of 1 in 60. Along with a few crossing loops, it enabled much longer trains to use the line. After the construction of the Ten Tunnels Deviation, it was abandoned.
History
The deviation started construction around July 1896 due to a sudden rise in traffic along the Western Line. It was longer than the original alignment, but it eased the grades to 1 in 60 and stretched three miles from Newnes Junction to Clarence. During construction, when the line rejoined the original alignment at Clarence, a number of changes had to be made. The original up platform was removed, and a new platform was erected a few hundred meters west. This platform is currently used by the Zig Zag Railway as a terminus. The platform on the loop was also removed.
Begin with the source’s own compact description: “Dargans Deviation” is section of the original Main Western railway line. The dossier treats that line as a proposition to test through Dargans, Deviation and section, not as a finished interpretation.
Why this record matters
The phrase “section of the original Main Western railway line” 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 May 12, 2026. The linked authority identifier is Q5222607. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1896 and 1897.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. 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 “Dargans Deviation”, its source revision and the description used here.
- Expand the search: follow Dargans Deviation primary sources, Dargans Deviation archive and Dargans 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 “Dargans Deviation”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Dargans Deviation” 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.