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blue plaque · Northern Ireland

William Mulholland

Photograph at the William Mulholland blue plaque

William Mulholland, an Irish American engineer, played a pivotal role in shaping the growth of Los Angeles. Though self-taught, he was the driving force behind the essential infrastructure that enabled the city's expansion. He designed and oversaw the construction of the extensive Los Angeles Aqueduct, a significant engineering feat stretching 233 miles to bring water from Owens Valley.

The ambitious project, however, was also associated with the California water wars. Mulholland's career concluded in March 1928 following the catastrophic failure of the St. Francis Dam, an event that occurred shortly after he and his assistant had conducted a safety check.

Original summary by TributeLegacy, informed by public sources.

Source: Open Plaques. Geographic data via OpenStreetMap.

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Data sources

Location records are drawn from open, licence-clean datasets, kept here with attribution and gratitude to the people who maintain them.

  • Open Plaques, dedicated to the public domain (CC0). See openplaques.org.
  • Wikidata, available under the CC0 1.0 Universal dedication.
  • © OpenStreetMap contributors, available under the Open Database Licence.
  • Historic England, National Heritage List for England, used under the Open Government Licence v3.0. War memorial records are drawn from open community datasets (OpenStreetMap, Wikidata, NHLE) - never from the Commonwealth War Graves Commission, which is excluded.

Editorial descriptions, photography and tribute links are original TributeLegacy work, layered on top of the open data.

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