Visual Materials
Portal Powerhouse - Forebay
- Description
- Portal Powerhouse - Forebay - Large boulder in dam foundation at station 5+00.
- Date
- 7/20/1955
- Call number
- photCL SCE 02 - 43587
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - Forebay - Scraping foundation of dam site near Station 3+00.
photCL SCE 02 - 43585
Visual Materials
Portal Powerhouse - Forebay - View from station 5+00, looking toward left abutment, showing outcroppings of ledge rock while excavating for upstream cutoff under impervious section.
photCL SCE 02 - 43311
Visual Materials
Portal Powerhouse - Forebay - Evidence of bed rock exposed by excavation between Stations 2+00 & 3+00, near the left abutment and along dam axis.
photCL SCE 02 - 43326
Visual Materials
Portal Powerhouse - Forebay - Compacting downstream dam foundation near west abutment.
photCL SCE 02 - 43580
Visual Materials
Portal Powerhouse - Forebay - Dam foundation prepared for fill placement near west abutment.
photCL SCE 02 - 43582
Visual Materials
Portal Powerhouse - Forebay - Preparation for rolling 24" diameter sluice pipe in place at forebay dam.
photCL SCE 02 - 43332