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List of state highways in Louisiana (400–449)

Wikimedia list article

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionDec 15, 2025
Entity authorityQ122897895
Source-derived summary

The following is a list of state highways in the U.S. state of Louisiana designated in the 400-449 range.

Louisiana Highway 400

Louisiana Highway 400 (LA 400) runs 5.75 miles (9.25 km) in an east–west direction from a local road northeast of Attakapas Landing to LA 1 north of Supreme, Assumption Parish.

From the west, LA 400 begins at the east end of a bridge across the Cancienne Canal. It continues the path of a local road that begins at a junction with LA 401 just north of Attakapas Landing on Lake Verret. LA 400 heads eastward and intersects LA 1011 and LA 1010 before ending at a junction with LA 1 opposite Bayou Lafourche. LA 400 is an undivided two-lane highway for its entire length.

The entire highway is in Assumption Parish.

Louisiana Highway 401

Louisiana Highway 401 (LA 401) runs 9.41 miles (15.14 km) in a southwest to northeast direction from a dead end at Lake Verret in Attakapas Landing to a junction with LA 1 in Napoleonville, Assumption Parish. The route's mileposts increase from the eastern end contrary to common practice.

The entire highway is in Assumption Parish.

Editorial summary

Begin with the source’s own compact description: “List of state highways in Louisiana (400–449)” is wikimedia list article. The dossier treats that line as a proposition to test through List, state and highways, not as a finished interpretation.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1011, 1010—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, List, state and highways is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “wikimedia list article” 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.

Evidence profile

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 Dec 15, 2025. The linked authority identifier is Q122897895. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1011 and 1010.

Critical limits

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.

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  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

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Source & attribution

This entry incorporates text from List of state highways in Louisiana (400–449)” 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.