Daily: 10 A.M.–5 P.M.
Closed on Tuesdays
1151 Oxford Road
San Marino, CA 91108
Visual Materials
Big Creek Powerhouse #3 - Penstock #3 Spherical Manifolds assembled with 2 penstock branches connected to Butterfly Valve House.
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Visual Materials
Big Creek Powerhouse #3 - PH #3 spherical penstock manifolds.
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Visual Materials
Big Creek Powerhouse #3 - Tunnel #3 outlet and manifolds.
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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 - Penstock 3 Manifold from top of valve house, showing connections provided for three units in addition to the three constructed in 1923, and branch penstocks connecting with valve house in foreground.
photCL SCE 02 - 12060
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Visual Materials
Tunnels 1, 3, and 8, including intake construction at Tunnel 3, 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 sluicing water at outlet, guests standing in 18' penstock, sluicing tunnel; Stevenson Creek, Camps 33, 34, 35, 36, 37 and 38 compressors, Camp 38 mess hall, Camp 33; Cascada - Baldwin 15 ton locomotive No. 4; Tunnel 8 construction, Adit 1; Intake at Dam 1 repairs.
photCL SCE
