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Butterfly valve control, manufactured by the Pelton Water Wheel Company in 1931, Diablo Powerhouse, July 1989
Butterfly valve control, manufactured by the Pelton Water Wheel Company in 1931, Diablo Powerhouse, July 1989
TitleButterfly valve control, manufactured by the Pelton Water Wheel Company in 1931, Diablo Powerhouse, July 1989
PhotographerLowe, Jet
Date1989
NotesPhotographs of the Skagit River Hydroelectric Project constructed between 1918-1961.

These photographs were taken to Historic American Engineering Record (HAER) standards as part of the Federal Energy and Regulatory Commission's re-licensing of the Skagit River Project, 1987-1989.

Construction of Diablo Powerhouse was completed in 1936.

PH Coll 627.64
Location DepictedUnited States--Washington (State)--Diablo Power Plant
Subjects (LCTGM)Control rooms--Washington (State)
Subjects (LCSH)Hydroelectric power plants--Washington (State)--Design and construction; Pelton Water Wheel Company; Valves
Digital CollectionSeattle Power and Water Supply Collection
Order NumberWWDL0613
Ordering InformationTo order a reproduction, inquire about permissions, or for information about prices see: http://www.lib.washington.edu/specialcollections/services/reproduction-info
Please cite the Order Number when ordering.
RepositoryUniversity of Washington Libraries. Special Collections Division
Repository CollectionHistoric American Engineering Record No. WA-24 (Skagit River and Newhalem Creek Hydroelectric Projects) Photograph Collection. PH Coll 627
Object TypePhotograph
Physical Descriptionsilver gelatin, b&w
Digital Reproduction InformationScanned from a photographic print using a Microtek Scanmaker 9600XL at 115 dpi in JPEG format at compression rate 3 and resized to 768x600 ppi. 2005
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