Visual Materials
Portal Powerhouse
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Portal Powerhouse
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Portal Powerhouse - Placing reinforcing steel for concrete disc, steel plate bulkhead.
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Portal Powerhouse
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Portal Powerhouse - Outlet end and anchor on concrete overflow pipe from surge chamber.
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Portal Powerhouse
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Portal Powerhouse - Placing reinforcing steel and forms for wye anchor.
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Portal Powerhouse
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Portal Powerhouse - Progress: Forming and placing reinforcing steel for by-pass bend anchor.
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Portal Powerhouse
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Portal Powerhouse - Excavating rock shot out of 15' plug. Left remaining at bottom of surge chamber shaft until after tunnel outage. D-4 [?] in tunnel loading into skip operated by Bay Cities Crane at top of shaft.
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Portal Powerhouse
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Portal Powerhouse - Excavation for spill pipe of Surge Tank.
photCL SCE 02 - 44605