Visual Materials
Portal Powerhouse
- Description
- Portal Powerhouse - Forms being erected for substructure concrete at powerhouse.
- Date
- 8/17/1955
- Call number
- photCL SCE 02 - 43624
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - View of forming for substructure concrete, showing neat excavation in tight decomposed granite for the draft tube encasement.
photCL SCE 02 - 43623
Visual Materials
Portal Powerhouse - Forms for Generator Foundation. Concrete work to start July 3, 1956.
photCL SCE 02 - 44606
Visual Materials
Portal Powerhouse - Forebay - Showing forms for concrete spillway crest.
photCL SCE 02 - 43765
Visual Materials
Portal Powerhouse - Last concrete being placed for season in expansion joint housing.
photCL SCE 02 - 43780
Visual Materials
Portal Powerhouse - First concrete in powerhouse being placed in pump sump.
photCL SCE 02 - 43551
Visual Materials
Portal Powerhouse - Placing reinforcing steel for concrete disc, steel plate bulkhead.
photCL SCE 02 - 43901