U.S. Route 431 in Alabama
section of U.S. Numbered Highway in Alabama, United State
U.S. Route 431 (US 431), internally designated by the Alabama Department of Transportation (ALDOT) as State Route 1 (SR 1), is a major north–south state highway across the eastern part of the U.S. state of Alabama. Although US 431's south end is in Dothan, SR 1 continues south for about 13 miles (21 km) along US 231 to the Florida state line.
Route description
SR 1 is primarily the unsigned partner route assigned to US 431.The two routes run concurrently from the southern terminus of US 431 at Dothan to the Tennessee state line. South of Dothan, SR 1 is assigned to US 231.
US 431 enters Alabama running concurrently with US 231. The route descends into Huntsville, becoming Memorial Parkway, a major thoroughfare across the city. The route engages in a 1.7-mile-long (2.7 km) concurrency with US 72 before a major interchange with I-565. Less than a mile later, US 431 turns off Memorial Parkway onto Governor's Drive, which it follows across Monte Sano Mountain. Descending into a valley, the route turns directly south, serving several bedroom communities of Huntsville.
The route crosses the Tennessee River eight miles (13 km) downstream of Guntersville Dam, serving the fishing city of Guntersville.
“U.S. Route 431 in Alabama” enters the record as section of U.S. Numbered Highway in Alabama, United State. Crown Archives preserves that source wording while asking what Route, Alabama and section can confirm, complicate or overturn.
Why this record matters
“U.S. Route 431 in Alabama” is worth following because a concise public description often conceals a longer documentary argument. Here, Route, Alabama and section provides the most credible route into that argument.
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 Aug 25, 2026. The linked authority identifier is Q876972. Authority coordinates are 31.366, -84.935. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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 “U.S. Route 431 in Alabama”, its source revision and the description used here.
- Expand the search: follow U.S. Route 431 in Alabama primary sources, U.S. Route 431 in Alabama archive and Route 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 “U.S. Route 431 in Alabama”?
- Which institution is responsible for the underlying evidence?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “U.S. Route 431 in Alabama” 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.