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Visual Materials

Portal Powerhouse - Forebay

Description: Portal Powerhouse - Forebay - Tunnel channel.
Type: Visual Materials(Opens in new tab)
Date: Oct. 1955
Call number: photCL SCE 02 - 43811
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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Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Upper portion of intake channel and portal of tunnel.
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Portal Powerhouse - Forebay - drilling final round in short tunnel inlet channel.
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Portal Powerhouse - Forebay - Section of left side of inlet channel adjacent to tunnel.
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Portal Powerhouse - Portal Forebay - Excavation in progress in intake channel.
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