University of Washington Libraries
Skip to content  Home : Favorites : Ordering and Use : Help : Blog   
Share
Digital Collections Special Collections : A-Z List : Subject List : Advanced Search  

« Seattle Power and Water Supply Collection

Western Waters Digital Library Visit the complete Western Waters Digital Library
add to favorites : reference url back to results : previous : next
 
Zoom in Zoom out Pan left Pan right Pan up Pan down Maximum resolution Fit in window Fit to width Rotate left Rotate right Hide/show thumbnail
Man standing inside Larner-Johnson flow control valve during installation at Gorge Dam Powerhouse, August 22, 1923
Man standing inside Larner-Johnson flow control valve during installation at Gorge Dam Powerhouse, August 22, 1923
TitleMan standing inside Larner-Johnson flow control valve during installation at Gorge Dam Powerhouse, August 22, 1923
PhotographerUnknown
Date1923
NotesPhotographs of the Skagit River Hydroelectric Project constructed between 1918-1961.

The Gorge Dam and Powerhouse were built by Seattle City Light and completed in September of 1924.

Water flows from the penstock through the dam and into a spiral "scroll case". Directed through slots on the inner diameter of the scroll case the water falls through the turbine, causing it to spin. Finally the water enters the "draft tube". The larger diameter of this steel outlet tube slows the water before it exits the dam on the downstream side. A Larner-Johnson valve is used to control the outflow of water.

Caption on image: Gorge Plant. Johnson Valve. 8-22-23. E-543

PH Coll 45.1-55b
Location DepictedUnited States--Washington (State)--Skagit River--Gorge Dam Powerhouse
Subjects (LCTGM)Construction workers--Washington (State)
Subjects (LCSH)Valves; Hydroelectric power plants--Washington (State)--Design and construction; Larner-Johnson Company
Digital CollectionSeattle Power and Water Supply Collection
Order NumberWWDL0372
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 CollectionSeattle City Light Albums. PH Coll 45
Object TypePhotograph
Physical Descriptionsilver gelatin, b&w
Digital Reproduction InformationScanned from a photographic print using a Microtek Scanmaker 9600XL at 150 dpi in JPEG format at compression rate 3 and resized to 768x600 ppi. 2005
add to favorites : reference url back to results : previous : next
Contact Us | Change display settings | About | Make a Gift | Privacy ^ to top ^ 
© University of Washington Libraries
Subscribe to Updates