Open Chute Concrete Spillway, Conconully Dam, ca. 1908
Rating
Title
Open Chute Concrete Spillway , Conconully Dam , ca. 1908
Photographer
Matsura , Frank , 1873-1913 .
Description
The photograph is a close-up of the Conconully Dam Spillway . Two explosions in August 1908 , one of two tons of powder , the other of three and one half tons , cut the spillway into a spur protruding out from the mountain abutment on the west side of the dam . It's purpose was to safeguard the dam from erosion should the river flood . One hundred and eighty feet long , the sides and bottom of the spillway were lined with concrete . This open cut channel diverted the water around the dam .
Subject
Dam Construction--Washington (State)--Conconully ; Spillways--Washington (State)--Conconully ;
Date
1908~
Type
Image
Genre
Progress photographs
Location
North and Central America--United States--Washington (state)--Okanogan county--Conconully Reservoir
Identifier
pc035b2f48n59
Source
Is found in PC 35, Frank S. Matsura Collection https://libraries.wsu.edu/masc/finders/pc35.htm at Washington State University Libraries' Manuscripts, Archives, and Special Collections (MASC) https://libraries.wsu.edu/masc
Rights
http://rightsstatements.org/vocab/NKC/1.0/
Rights Notes
No known copyright. Item went into public domain 70 years after the 1913 death of the author.
Restrictions
For permission to publish please contact Manuscripts, Archives, and Special Collections (509) 335-6691 or the Okanogan Historical Society (509) 422-4272
Format
Original photographic prints were scanned as 300 dpi TIFF files on a Microtek 9600XL scanner. 72 dpi JPEG files were then added to the CONTENT database at the WSU Libraries.
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