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Visual Materials

Portal Powerhouse

Description: Portal Powerhouse - Dust drifting over Bechtel camp from hot-mix plant.
Type: Visual Materials(Opens in new tab)
Date: 8/12/1955
Call number: photCL SCE 02 - 43544
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 - Another view of rock dust emitting from hot-mix plant operation.
photCL SCE 02 - 43543
Portal Powerhouse
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Portal Powerhouse - Hot bitumulo [?] plant used on State Hwy. construction below powerhouse.
photCL SCE 02 - 43662
Portal Powerhouse
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Portal Powerhouse - Camp Creek east shows erosion damage to road for total length of 200".
photCL SCE 02 - 43948
Portal Powerhouse
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Portal Powerhouse - South showing erosion damage to road. Camp Creek west channel eroded 10' by 25' wide.
photCL SCE 02 - 43950
Portal Powerhouse - West from roadway
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Portal Powerhouse - West from roadway - channel eroded by Camp Creek west.
photCL SCE 02 - 43947
Portal Powerhouse
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Portal Powerhouse - Lower Portal release from Ward Tunnel prior to Portal Powerhouse construction.
photCL SCE 02 - 43268