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Visual Materials

Portal Powerhouse

Description: Portal Powerhouse - Discharge at approximately 1800 cfs flow through Ward Tunnel.
Type: Visual Materials(Opens in new tab)
Date: 11/17/1955
Call number: photCL SCE 02 - 43920
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
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Portal Powerhouse - Downstream thru spray chamber at approx. 1800 cfs flow thru Ward Tunnel.
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Portal Powerhouse
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Portal Powerhouse - Channel below powerhouse structure, flow approx. 1800 cfs thru Ward Tunnel.
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Portal Powerhouse - Another view of discharge at approximately 1500 cfs flow thru tunnel.
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Portal Powerhouse - Discharge at side
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Portal Powerhouse - Discharge at side - channel spillway at approximately 1500 cfs flow thru tunnel.
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Portal Powerhouse - Temporary flow diversion from 12' pipe [Ward Tunnel]. Flow about 425 cfs..
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