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U.S. Route 136 in Iowa

section of U.S. Numbered Highway in Iowa, United States

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionNov 24, 2025
Entity authorityQ1481747
Source-derived summary

U.S. Highway 136 (US 136) is a short U.S. Highway in Keokuk, Iowa. The route was designated nationally in 1951 and has remained largely unchanged through Keokuk since then. The highway originally crossed the Mississippi on the Keokuk Rail Bridge, which was the second bridge built and operated by Andrew Carnegie's Keokuk & Hamilton Bridge Company in that location. While it was designed for wagons and early automobiles, crossing the rail bridge became difficult in larger modern vehicles, specifically semi trucks. As a result, a new automobile-only bridge was built directly to the south of the older span. The Keokuk–Hamilton Bridge opened in 1985 eight months early and under budget.

Route description

US 136 begins on a bridge over the Des Moines River with US 61. The river's mouth on the Mississippi River is visible to the southeast of the bridge. After landing on the Iowa side of the river, the two routes curve to the east. US 61 splits off to the north and its business route begins along US 136.

Editorial summary

This brief starts where responsible research should: with the source description of “U.S. Route 136 in Iowa” as section of U.S. Numbered Highway in Iowa, United States. Everything that follows is an evidence route, not borrowed authority.

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—1951, 1985—that can be checked directly. The linked authority record independently contributes the date 1951. The account is most persuasive where Route, Iowa and section can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as section of U.S. Numbered Highway in Iowa, United States. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Nov 24, 2025. The linked authority identifier is Q1481747. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1951 and 1985.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. 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.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “U.S. Route 136 in Iowa”, its source revision and the description used here.
  2. Expand the search: follow U.S. Route 136 in Iowa primary sources, U.S. Route 136 in Iowa archive and Route research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “U.S. Route 136 in Iowa”?
  2. Which cited source is closest to the event, object or claim?
  3. What terminology or title could unlock a more precise catalogue search?
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Source & attribution

This entry incorporates text from U.S. Route 136 in Iowa” 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.