Visual Materials
Portal Powerhouse
- Description
- Portal Powerhouse - Blasting of large boulders.
- Date
- 8/11/1955
- Call number
- photCL SCE 02 - 43642
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Portal Powerhouse - View to highway bridge with tailrace channel excavation readying large boulders for blasting.
photCL SCE 02 - 43640
Visual Materials
Portal Powerhouse - Breaking up large boulders in pool at end of 12' diameter pipe.
photCL SCE 02 - 43325
Visual Materials
Portal Powerhouse - Tailrace channel excavation view from highway bridge. Boulders ready for shooting.
photCL SCE 02 - 43641
Visual Materials
Powerhouse #8 - Boulders in spillway being drilled for blasting
photCL SCE 02 - 06838
Visual Materials
Powerhouse #8 - Boulders in spillway being drilled for blasting
photCL SCE 02 - 06839
Visual Materials
Portal Powerhouse - North showing large Barronca eroded above tunnel adit.
photCL SCE 02 - 43952