Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Big Creek Powerhouse #4 - Progress pictures (from Group 1) - Excavation for Powerhouse 4, outlet portal of power tunnel, and switchyard.
photCL SCE 02 - 40612
Visual Materials
Big Creek Powerhouse #4 - Diversion tunnel, lower portal site.
photCL SCE 02 - 29047
Visual Materials
Big Creek Powerhouse #4 - Construction pictures taken by Dam & Tunnel Office. [Dam 7 construction - showing lower portal of bypass tunnel.
photCL SCE 02 - 42475
Visual Materials
Big Creek Powerhouse #4 - Progress pictures (from Group 1) - Dam 7 looking north along axis. Inlet tunnel portal at lower left.
photCL SCE 02 - 40629
Visual Materials
Big Creek Powerhouse #4 - Construction pictures taken by Dam & Tunnel Office. [Tunnel portal site at Willow Creek crossing]
photCL SCE 02 - 42040
Visual Materials
Big Creek Powerhouse #4 - Penstock viewed from Outlet Portal of Tunnel #2.
photCL SCE 02 - 41570
