John Day Dam

concrete gravity run-of-the-river dam on the Columbia River in Oregon and Washington, United States
Place dam Q689531
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John Day Dam

Summary

John Day Dam is a dam[1]. It ranks in the top 4% of dam entities by monthly Wikipedia readership (58 views/month).[2]

Key Facts

  • John Day Dam is located in Washington[3].
  • John Day Dam is located in Oregon[4].
  • John Day Dam is located in Klickitat County[5].
  • John Day Dam is in the country of United States[6].
  • John Day Dam's instance of is recorded as dam[7].
  • John Day Dam's instance of is recorded as lock[8].
  • John Day Dam's instance of is recorded as hydroelectric power station[9].
  • John Day Dam's Commons category is recorded as John Day Dam[10].
  • 1959 marks the founding of John Day Dam[11].
  • John Day Dam's coordinate location is recorded as {'lat': 45.715555555556, 'lon': -120.69277777778}[12].
  • John Day Dam's located in/on physical feature is recorded as Columbia River[13].
  • John Day Dam's length is recorded as {'unit': 'Q11573', 'amount': '+1719'}[14].
  • John Day Dam's nominal power output is recorded as {'unit': 'Q6982035', 'amount': '+2160'}[15].
  • John Day Dam's drainage basin is recorded as Columbia Basin[16].
  • John Day Dam's reservoir created is recorded as Lake Umatilla[17].

Body

Geography

John Day Dam is in the country of United States[6]. Located in include Washington[3], an U.S. state[18], in United States[19], founded in 1889[20]; Oregon[4], an U.S. state[21], in United States[22], founded in 1859[23], headquartered in Salem[24]; and Klickitat County[5], a county of Washington[25], in United States[26], founded in 1859[27].

Physical Characteristics

John Day Dam's length is recorded as {'unit': 'Q11573', 'amount': '+1719'}[14].

Designation and Status

Recorded instance of include dam[7], lock[8], and hydroelectric power station[9].

History and Context

1959 marks the founding of John Day Dam[11].

Why It Matters

John Day Dam ranks in the top 4% of dam entities by monthly Wikipedia readership (58 views/month).[2] It has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[28] It is known by 6 alternative names across languages and contexts.[29]

References

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

Direct Wikidata claims

  1. [6] . Geographic Names Information System. wikidata.org.
  2. [7] . National Inventory of Dams. wikidata.org.
  3. [8] . National Inventory of Dams. wikidata.org.
  4. [9] . Form EIA-860M. Retrieved . wikidata.org.
  5. [3] . wikidata.org.
  6. [4] . wikidata.org.
  7. [5] . Geographic Names Information System. wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . Geographic Names Information System. wikidata.org.
  11. [13] . National Inventory of Dams. wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . Form EIA-860. Retrieved . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.

Inline context (facts about related entities)

  1. [18] . Wikidata. wikidata.org. → on this site
  2. [19] . Wikidata. wikidata.org. → on this site
  3. [20] . Wikidata. wikidata.org. → on this site
  4. [21] . Wikidata. wikidata.org. → on this site
  5. [22] . Wikidata. wikidata.org. → on this site
  6. [23] . Wikidata. wikidata.org. → on this site
  7. [24] . Wikidata. wikidata.org. → on this site
  8. [25] . Wikidata. wikidata.org. → on this site
  9. [26] . Wikidata. wikidata.org. → on this site
  10. [27] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] . Wikidata sitelinks. wikidata.org.
  3. [29] . Wikidata aliases. 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). John Day Dam. Retrieved May 3, 2026, from https://4ort.xyz/entity/john-day-dam
MLA “John Day Dam.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/john-day-dam.
BibTeX @misc{4ortxyz_john-day-dam_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{John Day Dam}}, year = {2026}, url = {https://4ort.xyz/entity/john-day-dam}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): John Day Dam — https://4ort.xyz/entity/john-day-dam (retrieved 2026-05-03)

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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. 15d ago · DontCallMeLateForDinner · 2026-06-24 view diff on Wikidata ↗
    Length {'unit': 'Q11573', 'amount': '+1719'}
    Aliases
    Country
    Inception
    + 14 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P2674]]: [[Q7407606]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.