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Visual Materials

Portal Powerhouse

Description: Portal Powerhouse - Hot bitumulo [?] plant used on State Hwy. construction below powerhouse.
Type: Visual Materials(Opens in new tab)
Date: 8/17/1955
Call number: photCL SCE 02 - 43662
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 - Potter Creek channel used as temporary diversion. View from Hwy Bridge looking upstream.
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Portal Powerhouse - Start of tailrace excavation at lower end. View taken thru channel span of State Hwy. Bridge.
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Portal Powerhouse - Dust drifting over Bechtel camp from hot-mix plant.
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Portal Powerhouse - Channel below powerhouse structure, flow approx. 1800 cfs thru Ward Tunnel.
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