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Visual Materials

Portal Powerhouse - Forebay

Description: Portal Powerhouse - Forebay - Dam foundation prepared for fill placement near west abutment.
Type: Visual Materials(Opens in new tab)
Date: 7/20/1955
Call number: photCL SCE 02 - 43582
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
Visual Materials
Portal Powerhouse - Forebay - Compacting downstream dam foundation near west abutment.
photCL SCE 02 - 43580
Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - View from right abutment showing site preparation for downstream rock fill portion of the dam.
photCL SCE 02 - 43306
Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Placing first fill in impervious section under location of sluice pipe. Note dozer pushing layer of saturated & disturbed surface material, exposing firm foundation, before fill placement.
photCL SCE 02 - 43315
Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - View from left abutment showing completed foundation preparation under a portion of rock fill section. Shovel and Dozer excavating in upstream cutoff.
photCL SCE 02 - 43304
Portal Powerhouse - Portal Forebay
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Portal Powerhouse - Portal Forebay - North side of reservoir and blanketed moraine from top of dam near left abutment.
photCL SCE 02 - 43784
Portal Powerhouse - Forebay
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Portal Powerhouse - Forebay - Dam site viewed from west abutment.
photCL SCE 02 - 43583