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Kłodnica Canal

canal in Poland (1812–1936)

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMar 25, 2026
Entity authorityQ357323 ↗
Source-derived summary

The Kłodnicki Canal (Polish: Kanał Kłodnicki) is a canal along the Kłodnica River in Upper Silesia, Poland between the Oder River and Gliwice. Constructed when the territory was part of Prussian Silesia, it was originally known as the Klodnitz Canal (German: Klodnitzkanal).

Because the Kłodnica (Klodnitz) was not navigable, a canal was needed to provide transportation for the flourishing coal and ore mining, as well as the metallurgy industry in the Upper Silesia region. Designed by John Baildon, an engineer from Scotland and Friedrich Wilhelm von Reden, Director of the High Mining Office in Breslau (Wrocław), the canal was built between 1792 and 1812. It had a length of about 46 km (29 mi) and an altitude difference of about 49 meters (161 ft). It incorporated two hybrid inclined track/ canal locks.

The depth of the canal and the design of the locks allowed the use of vessels of up to 50 tons of payload. However, construction of rail transport facilities connecting the Upper Silesian coalfields eroded the importance of the waterway. The freight volume on the canal in 1847 was 70,000 tons, but shipments dropped to only 4,400 tons by 1865. Between 1888 and 1893, the canal was expanded to allow the passage of vessels up to 100 tons load and 1.2 meters (3.9 ft) draft.

Editorial summary

Begin with the source’s own compact description: “Kłodnica Canal” is canal in Poland (1812–1936). The dossier treats that line as a proposition to test through Kłodnica, Canal and canal, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1792, 1812, 1847, 1865—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Kłodnica, Canal and canal is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “canal in Poland (1812–1936)” 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

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 Mar 25, 2026. The linked authority identifier is Q357323. VIAF identifies the subject as 309596670. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1792, 1812, 1847 and 1865.

Critical limits

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Source & attribution

This entry incorporates text from “Kłodnica Canal” 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.