OPEN TODAY: 10 A.M.–5 P.M.

Visual Materials

Portal Powerhouse - Forebay

Description: Portal Powerhouse - Forebay - Loading tunnel muck for placement in dam downstream zone.
Type: Visual Materials(Opens in new tab)
Date: 8/17/1955
Call number: photCL SCE 02 - 43629
Find out more: View in the Huntington Digital Library(Opens in new tab); View in the Library catalog(Opens in new tab)

You might also be interested in

Portal Powerhouse
Visual Materials
Portal Powerhouse - Select tunnel muck filter zone blanket downstream portion of dam maximum section.
photCL SCE 02 - 43595
Portal Powerhouse - Forebay
Visual Materials
Portal Powerhouse - Forebay - Dam foundation prepared for fill placement near west abutment.
photCL SCE 02 - 43582
Portal Powerhouse - Portal Forebay
Visual Materials
Portal Powerhouse - Portal Forebay - Downstream side of dam showing outlet end of 24" sluice pipe.
photCL SCE 02 - 43786
Portal Powerhouse - Portal Forebay
Visual Materials
Portal Powerhouse - Portal Forebay - Left end of dam from downstream side, showing spillway and pilot channel.
photCL SCE 02 - 43787
Portal Powerhouse - Forebay
Visual Materials
Portal Powerhouse - Forebay - Compacting downstream dam foundation near west abutment.
photCL SCE 02 - 43580
Portal Powerhouse - Forebay
Visual Materials
Portal Powerhouse - Forebay - View from right abutment showing site preparation for downstream rock fill portion of the dam.
photCL SCE 02 - 43306