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Diversion dam and tunnel construction, Diablo Dam, March 1928
Diversion dam and tunnel construction, Diablo Dam, March 1928
TitleDiversion dam and tunnel construction, Diablo Dam, March 1928
PhotographerUnknown
Date1928
NotesPhotographs of the Skagit River Hydroelectric Project constructed between 1918-1961.

The Diablo Dam was built by Seattle City Light at a location 7-1/2 miles upstream from Newhalem and completed August 27, 1930. Due to the Great Depression, the Diablo Powerhouse was not completed until 1935, with the first power being generated in 1936.

Caption on image: D-28-3-110

Caption below image: De-watering tunnel and Diversion dam

PH Coll 45.2-9
Location DepictedUnited States--Washington (State)--Skagit River--Diablo Dam
Subjects (LCTGM)Rivers--Washington (State); Tunnels--Washington (State)
Subjects (LCSH)Diversion weirs--Washington (State)--Design and construction; Dams--Washington (State)--Design and construction; Skagit River (B.C. and Wash.); Footbridges--Washington (State)
Digital CollectionSeattle Power and Water Supply Collection
Order NumberWWDL0383
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.
Negative NumberUW8845
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
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