Opening Hours
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
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Visual Materials
Construction of Powerhouse 3 and construction camps 1 to 54. Views include Tunnel 3, including intake construction, portal adit Camp 36, Camp 35 adit, outlet portal; Penstock 3 portal structure and manifold, surge chamber, drill sharpeners, connecting 18' penstock to manifold, butterfly valve house, flume to railroad sluicing water at outlet; Tunnel 3 excavation; Surge chamber construction; Construction views of Powerhouse 3, installation of 3 penstocks, turbine and generator installations at No. 3; Construction of 220kV switchyard.
photCL SCE

Visual Materials
Big Creek Powerhouse #3 - Tunnel #3 outlet portal - excavation for manifold - Camp 37 in background.
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Visual Materials
Florence Lake Tunnel No. 6 (Ward Tunnel): Photographs of Electric train, concrete batch cars, group photographs of laborers, powder magazine, setting drills, firing switches, steam shovel, tunnel mucking, tunnel breakthrough, tunnel mess train, first round at intake portal, intake portal, outlet portal with flow, outlet flume washout; Camps 31, 60, 61, 62, 63, including library, bath house, housing, boxing match, tool sharpening shop, hospital, office, kitchen, cold storage, ice house, warehouse, dining room, sawmill, the Editors' Party, transmission line, blacksmith shop; Huntington Lake: Daw's Cottage.
photCL SCE
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Visual Materials
Early construction photographs of Big Creek. Includes views of gravel pit, sluicing Powerhouse No. 2 site; Powerhouse 1 under construction; Powerhouse 2 under construction; Units 1 and 2 at Powerhouse 1; Powerhouse 2 switchboard, generator, Hoist No. 2, oil switch room, 6600 V switch room, local service switchboard, generator assembly; Tunnel 2 - adit 1, 2, 3, 4, 5, 6, 7, and 8; Intake to Tunnel 1, 9' flow pipe, west portal Tunnel 1, concreting surge tank at West Portal Tunnel 2. Photographs by Stone & Webster Engineering Corporation.
photCL SCE
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Visual Materials
Powerhouse No. 8, Part One. Photographs of Dam 6, Camp 34, Camp 38, overview of Powerhouse 8 and penstock, milling Powerhouse 8 draft tube, operator's cottage, forebay, sluicing tailrace, generator floor, switchboard, rocks washed into tailrace after penstock burst, Unit No. 2 at Pelton Water Wheel Co., generator and governor at Powerhouse 8, penstock vent, transformers and bus, station power sets, switchboard, broken penstock, drilling tunnel No. 8, repaired penstock, steel forebay, Camp 32 cook house, Johnson Valve, Camp 33.
photCL SCE
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Visual Materials
Early construction photographs of Big Creek, including construction of Penstock 2 and Powerhouse 2; East portal Tunnel 4; Adit 5, backfill on flowline, incline railroad No. 2, Adit 3 Tunnel 2, 84" flowline installation, site for Powerhouse No. 2, Penstock No. 1, and Powerhouse 1 construction. Photographs by Stone & Webster Engineering Corporation.
photCL SCE