Visual Materials

Several of John Eastwood's original drawings for his proposed Big Creek plants still survive in Edison Company files

Description: Several of John Eastwood's original drawings for his proposed Big Creek plants still survive in Edison Company files. This drawing was prepared to show the relative strengths of, and quantities of materials required for, traditional gravity arch and rock filled dams, as compared with Eastwood's own innovative multiple arch dam design.
Type: Visual Materials(Opens in new tab)
Date: undated
Call number: photCL SCE 12 - 00013
Find out more: View in the Huntington Digital Library(Opens in new tab); View in the Library catalog(Opens in new tab)

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This drawing reveals another flash of John Eastwood's genius
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This drawing reveals another flash of John Eastwood's genius, a design for prestressed concrete transmission towers, rather than the traditional wooden or steel poles. Such concrete towers were not used at Big Creek, but have been experimented with elsewhere in recent years.
photCL SCE 12 - 00014
The prominent granite dome that towers over the site of Big Creek #1 Hydro Plant was named by John Eastwood for William G. Kerckhoff
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The prominent granite dome that towers over the site of Big Creek #1 Hydro Plant was named by John Eastwood for William G. Kerckhoff, and early investor in Eastwood's power projects. Kerckhoff became the President of the San Joaquin Light and Power Comany, which grew out of Eastwood's original San Joaquin Electric Company.
photCL SCE 12 - 00019
John Samuel Eastwood (1857-1924) was involved in civil engineering projects in the San Jaoquin Valley and the High Sierras
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John Samuel Eastwood (1857-1924) was involved in civil engineering projects in the San Jaoquin Valley and the High Sierras for almost all of his career. In addition to the Big Creek Project, the invention of the multiple-arch dam is Eastwood's most enduring legacy.
photCL SCE 12 - 00016