Photo, Print, Drawing 15. SCREENHOUSE, MAIN GATE (INTAKE) AS MANUALLY OPERATED ORIGINALLY [NOW CONTROLLED HYDRAULICALLY] - Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Village, Mariposa County, CA Photos from Survey HAER CA-20

About this Item

About this Item

Title

  • Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Village, Mariposa County, CA

Names

  • Historic American Engineering Record, creator
  • Galloway, John Debo
  • Markwart, A H
  • Mather, Stephen
  • Floy, Henry
  • Pelton Water Wheel Company
  • San Joaquin Light and Power Company
  • Pacific Gas and Electric Company
  • Huston, Ann, project manager
  • Cloyd, Paul C, field team
  • Kenkel, Craig, field team
  • Wambeh, Joanne, field team

Created / Published

  • Documentation compiled after 1968

Headings

  • -  hydroelectric power plants
  • -  T-plan buildings
  • -  wooden buildings
  • -  water power
  • -  engineering
  • -  national parks & reserves
  • -  Civilian Conservation Corps
  • -  powerhouses
  • -  penstocks
  • -  dams
  • -  intakes
  • -  turbines
  • -  generators
  • -  transformers
  • -  California -- Mariposa County -- Yosemite Village

Notes

  • -  Significance: The Yosemite Hydroelectric Power Plant is a good example of its type and possesses a high level of integrity. Though once commonplace the type of system utilized by the power plant is becoming rare with intact systems even more rare. There are no other known penstock-fed systems in California with their original Pelton wheels (a particular type of turbine), generators, switch boards, and design intact.
  • -  Survey number: HAER CA-20
  • -  Building/structure dates: 1918 Initial Construction
  • -  Building/structure dates: 1939 Subsequent Work
  • -  Building/structure dates: 1951 Subsequent Work
  • -  Building/structure dates: 1935 Subsequent Work
  • -  Building/structure dates: 1943 Subsequent Work
  • -  Building/structure dates: 1981 Subsequent Work

Medium

  • Photo(s): 47
  • Measured Drawing(s): 1
  • Data Page(s): 37
  • Photo Caption Page(s): 5

Call Number/Physical Location

  • HAER CAL,22-YOSEM,4-

Source Collection

  • Historic American Engineering Record (Library of Congress)

Repository

Control Number

  • ca1358

Rights Advisory

Online Format

  • image
  • pdf

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  • Call Number: HAER CAL,22-YOSEM,4-
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Cite This Item

Citations are generated automatically from bibliographic data as a convenience, and may not be complete or accurate.

Chicago citation style:

Historic American Engineering Record, Creator, John Debo Galloway, A H Markwart, Stephen Mather, Henry Floy, Pelton Water Wheel Company, San Joaquin Light And Power Company, et al. Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Village, Mariposa County, CA. Yosemite Village California Mariposa County, 1968. Documentation Compiled After. Photograph. https://www.loc.gov/item/ca1358/.

APA citation style:

Historic American Engineering Record, C., Galloway, J. D., Markwart, A. H., Mather, S., Floy, H., Pelton Water Wheel Company [...] Wambeh, J. (1968) Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Village, Mariposa County, CA. Yosemite Village California Mariposa County, 1968. Documentation Compiled After. [Photograph] Retrieved from the Library of Congress, https://www.loc.gov/item/ca1358/.

MLA citation style:

Historic American Engineering Record, Creator, et al. Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Village, Mariposa County, CA. Documentation Compiled After. Photograph. Retrieved from the Library of Congress, <www.loc.gov/item/ca1358/>.