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The Loop

circuit of elevated rail that forms the hub of the Chicago 'L' system in the United States
Place Fixed Construction Q2225459

Facts

18 properties

Identity

Instance of
fixed construction, circle route, rapid transit line[4][5]
Inception
1897[12]

Location

Country
United States[3]
Location
Chicago Loop[10]
Coordinate location
🗺️ 41.880°, -87.646°
Located in the administrative territorial entity
Chicago[2]
More facts +12
Owned by
Chicago Transit Authority, Chicago Rapid Transit Company[6]
Part of
Chicago "L"[11]
Architect
John Alexander Low Waddell
Commissioned by
Charles Yerkes
Date of official opening
September 6, 1897[14]
Different from
Chicago Loop[15]
Investor
Charles Yerkes
Made from material
steel, wood[8][9]
Operator
Chicago Transit Authority, Chicago Rapid Transit Company[7]
Route diagram template
Template:The Loop (CTA)[16]
State of use
in use[17]
Topic has template
Template:The Loop stations[13]
🏷️ Also known as
en Chicago Loop Elevated Structure en Chicago Loop L en Chicago Union Loop Elevated Structure en CTA Loop en Elevated Loop en Loop Elevated en Loop 'L' en The Loop en Union Loop en Union Loop Elevated Structure ja ループ ja 環状線 (シカゴ・L) ja 環状鉄道 (CTA) nl Loop nl Loop (Chicago) th เดอะลูป uk Кільце чиказького метрополітену zh 芝加哥地鐵環線 zh 芝加哥迴圈 zh 迴圈高架
🔖 Identifiers · 11
Library of Congress Authorities ID
sh86000948
Image (Wikimedia Commons)
Chicago-Loop-SEcorner.jpg ↗
BabelNet ID
03614987n
FAST ID
854031
Freebase ID
/m/0261_2_
Harper's tag
chicago-union-loop-elevated-structure-chicago-ill
J9U entity ID
987007541292305171
LoC HABS/HAER/HALS place ID
il0389
Open Library subject ID
chicago_union_loop_elevated_structure_(chicago_ill.)
Structurae structure ID
10001405
Topic's main category
Category:The Loop (CTA)

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
← Connecting line 7
Clark/Lake, Adams/Wabash, Harold Washington Library – State/Van Buren station, Washington/Wells, LaSalle/Van Buren, Quincy, State/Lake
Instance of 2
circle route, fixed construction
Made from material 2
wood, steel
Architect 1
John Alexander Low Waddell
Belongs to 1
Chicago "L"
Commissioned by 1
Charles Yerkes
Country 1
United States
Investor 1
Charles Yerkes
Located in the administrative territorial entity 1
Chicago
Location 1
Chicago Loop
Operator 1
Chicago Transit Authority
Owned by 1
Chicago Transit Authority
Part of 1
Chicago "L"
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Summary

The Loop is a fixed construction[1].

Related Entities

United States

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . Encyclopedia of Chicago. Retrieved . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . tile.loc.gov. Retrieved . tile.loc.gov. Provenance: wikidata.org.
  5. [2] ↑ . Encyclopedia of Chicago. Retrieved . loc.gov. Provenance: wikidata.org.
  6. [7] ↑ . Encyclopedia of Chicago. Retrieved . transitchicago.com. Provenance: wikidata.org.
  7. [8] ↑ . tile.loc.gov. Retrieved . tile.loc.gov. Provenance: wikidata.org.
  8. [9] ↑ . tile.loc.gov. Retrieved . tile.loc.gov. Provenance: wikidata.org.
  9. [10] ↑ . Encyclopedia of Chicago. Retrieved . americanhistory.si.edu. Provenance: wikidata.org.
  10. [11] ↑ . americanhistory.si.edu. Retrieved . americanhistory.si.edu. Provenance: wikidata.org.
  11. [12] ↑ . Encyclopedia of Chicago. Retrieved . tile.loc.gov. Provenance: wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . loc.gov. Retrieved . loc.gov. Provenance: wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . wikidata.org.
  16. [17] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). The Loop. Retrieved November 8, 2026, from https://4ort.xyz/entity/the-loop
MLA “The Loop.” 4ort.xyz Knowledge Graph, 4ort.xyz, 8 Nov. 2026, https://4ort.xyz/entity/the-loop.
BibTeX @misc{4ortxyz_the-loop_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{The Loop}}, year = {2026}, url = {https://4ort.xyz/entity/the-loop}, note = {Accessed: 2026-11-08}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): The Loop — https://4ort.xyz/entity/the-loop (retrieved 2026-11-08)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 27d ago · Susmuffin · 2026-10-13 view diff on Wikidata ↗
    Country → United States
    Investor → Charles Yerkes
    Owned by → Chicago Transit Authority, Chicago Rapid Transit Company
    Topic's main category → Category:The Loop (CTA)
    + 15 other properties edited (see Wikidata diff for full list)
    "Created claim: Harper's tag: chicago-union-loop-elevated-structure-chicago-ill, Matched to chicago union loop elevated structure chicago…"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.