Opening Hours
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Big Creek, Huntington Lake Dams - Portal Powerhouse - Progress of powerhouse structure. Forming for back wall and penstock bend anchor at powerhouse.
photCL SCE 02 - 43752
Visual Materials
Big Creek, Huntington Lake Dams - Rancheria Creek at its confluence with leakage water from construction activities at Portal Powerhouse. Estimated flow about 1 cfs.
photCL SCE 02 - 44837
Visual Materials
Big Creek, Huntington Lake Dams - Rancheria Creek near Portal Powerhouse, showing temporary road crossing, which also dams the flow of the creek.
photCL SCE 02 - 44838
Visual Materials
Big Creek, Huntington Lake Dams - Portal Forebay - upper part of open cut intake channel and portal face of short section of tunnel before first round was shot.
photCL SCE 02 - 43751
Visual Materials
Big Creek, Huntington Lake Dams - Portal Forebay - Drilling 1st round of holes in portal face of short tunnel connecting open cut channel to Ward Tunnel through vertical shaft in adit.
photCL SCE 02 - 43750
Visual Materials
Big Creek, Huntington Lake Dams - Progress of backfills on Huntington Lake Dams by Stone & Webster Co. - Downstream view of auxiliary spillway structure.
photCL SCE 02 - 20166