OPEN TODAY: 10 A.M.–5 P.M.

Tickets

Visual Materials

Portal Powerhouse

Description
Portal Powerhouse - Forebay - Foundation excavation in vicinity of sluice pipe. Picture covers from axis to upstream toe. Dragline excavating for impervious cut-off upstream from toe to lessen seepage.
Type
Visual Materials(Opens in new tab)
Date
7/23/1955
Call number
photCL SCE 02 - 43310
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

    Portal Powerhouse

    Visual Materials

    Portal Powerhouse - Portal Forebay - Close-up of 24" sluice pipe gate in place at upstream toe.

    photCL SCE 02 - 43788

  • Portal Powerhouse - Forebay

    Portal Powerhouse - Forebay

    Visual Materials

    Portal Powerhouse - Forebay - Foundation excavation at location for sluice pipe, viewed from upstream.

    photCL SCE 02 - 43586

  • Portal Powerhouse - Forebay

    Portal Powerhouse - Forebay

    Visual Materials

    Portal Powerhouse - Forebay - Placing earthfill upstream from sluice pipe.

    photCL SCE 02 - 43596

  • Portal Powerhouse - Forebay

    Portal Powerhouse - Forebay

    Visual Materials

    Portal Powerhouse - Forebay - View from downstream of sluice pipe foundation excavation.

    photCL SCE 02 - 43588

  • Portal Powerhouse - Forebay

    Portal Powerhouse - Forebay

    Visual Materials

    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

    Portal Powerhouse - Forebay

    Visual Materials

    Portal Powerhouse - Forebay - Placing impervious blanket on morane slope upstream from right abutment.

    photCL SCE 02 - 43534