Visual Materials
Portal Powerhouse
- Description
- Portal Powerhouse - Placing reinforcing steel for concrete disc, steel plate bulkhead.
- Date
- 11/3/1955
- Call number
- photCL SCE 02 - 43901
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108

Visual Materials
Portal Powerhouse - Placing reinforcing steel and forms for wye anchor.
photCL SCE 02 - 43769

Visual Materials
Portal Powerhouse - Progress: Forming and placing reinforcing steel for by-pass bend anchor.
photCL SCE 02 - 43741

Visual Materials
Portal Powerhouse - Temporary backing to reduce vibration in 3/8" plate bulkhead in turbine Wye branch inadequate; it was replaced with concrete disc back by I-beams.
photCL SCE 02 - 43898

Visual Materials
Portal Powerhouse - Starting reinforcing steel for upper portion of surge chamber structure.
photCL SCE 02 - 44820

Visual Materials
Portal Powerhouse - Portal Forebay - Bottom of vertical shaft in adit, shows upper portion of concrete bulkhead in adit.
photCL SCE 02 - 43790

Visual Materials
Portal Powerhouse - Placing concrete top left of center of powerhouse wall.
photCL SCE 02 - 43727