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Portland General Electric Photograph Collection Hydroelectric power plants With digital objects
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Station B
Station B
Oak Grove Project, Station P
Oak Grove Project, Station P
Oak Grove Project, Station P
Oak Grove Project, Station P
Oak Grove project, water filling pond less than one hour after closing dam
Oak Grove project, water filling pond less than one hour after closing dam
Oak Grove project, attaching coils to rotor of generator
Oak Grove project, attaching coils to rotor of generator
Oak Grove unit #1
Oak Grove unit #1
Oak Grove Tunnel, party of officials at northern portal
Oak Grove Tunnel, party of officials at northern portal
Bull Run, Little Sandy Dam construction
Bull Run, Little Sandy Dam construction
Bull Run, Little Sandy Dam construction
Bull Run, Little Sandy Dam construction
Bull Run, Little Sandy Dam construction
Bull Run, Little Sandy Dam construction
Bull Run, Big Sandy tunnel construction
Bull Run, Big Sandy tunnel construction
Photograph showing a man kneeling at the top of the tunnel entrance at the Big Sandy Dam (likely the Marmot Dam). He is holding a labeled measuring stick that extends into the water below.  "1913" is etched above the arch of the tunnel.
Bull Run, Big Sandy flume entrance to tunnel
Bull Run, Big Sandy Dam canal and flume construction
Bull Run, Big Sandy Dam canal and flume construction
Bull Run, Big Sandy canal excavation
Bull Run, Big Sandy canal excavation
Bull Run, Big Sandy dam canal excavation
Bull Run, Big Sandy dam canal excavation
Bull Run, Big Sandy dam construction
Bull Run, Big Sandy dam construction
Bull Run, Big Sandy dam construction
Bull Run, Big Sandy dam construction
Bull Run, Big Sandy dam construction
Bull Run, Big Sandy dam construction
Bull Run, Big Sandy dam construction
Bull Run, Big Sandy dam construction
Bull Run, Big Sandy dam construction
Bull Run, Big Sandy dam construction
Bull Run, Little Sandy Dam, powerhouse interior
Bull Run, Little Sandy Dam, powerhouse interior
Bull Run, Little Sandy Dam, generator and governor
Bull Run, Little Sandy Dam, generator and governor
Bull Run, Inside governor and generator devices
Bull Run, Inside governor and generator devices
Bull Run, Little Sandy Dam, high tension switch room 57,000
Bull Run, Little Sandy Dam, high tension switch room 57,000
Bull Run, Little Sandy Dam, unit number 2
Bull Run, Little Sandy Dam, unit number 2
Bull Run, Little Sandy Dam, powerhouse
Bull Run, Little Sandy Dam, powerhouse
Bull Run, powerhouse from bridge
Bull Run, powerhouse from bridge
Bull Run, Big Sandy dam construction
Bull Run, Big Sandy dam construction
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