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Kennicott

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Kennecott Copper Corporation, Leaching Plant, On Copper River & Northwestern Railroad, Kennicott, Valdez-Cordova Census Area, AK



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Photo Caption Pages


Item Title


Location
On Copper River & Northwestern Railroad, Kennicott, AK

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Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER AK-1-E
Unprocessed field note material exists for this structure (N1050).
Building/structure dates: 1915 initial construction
Building/structure dates: 1923 subsequent work
Building/structure dates: 1935 subsequent work
Building/structure dates: 1938 subsequent work
National Register Number: 78003420
Significance: The original leaching plant (now the south end of the building) was constructed in 1915 and went into production the next year. The first four leaching tanks could process 300 tons of ore per day. Within a year the number of leaching tanks was doubled with additions to the north end of the plant. Leaching could not recover all of the copper. In 1923, a small flotation plant was installed at the north end of the leaching plant to process the small ore particles known as slimes and sands.

Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
View looking northwest at south end of east elevation
South end of east elevation
East elevation of laboratory/office wing
View looking northwest at south gable end of central wing
South elevation of center stacking shed
East elevation of center stacking shed
View looking southwest of east gable wall at tailings conveyor
East elevation of north stacking shed
View looking southwest of north elevation
North gable end elevation
View looking southeast of north gable end
View looking southeast of ore bin wing on west side
View looking northeast of ore bin wing on west side
View looking northeast at south gable end of center wing
South end of west elevation


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