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Portland General Electric Photograph Collection Dams--Design and construction With digital objects English
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Bull Run, Big Sandy dam construction
Bull Run, Big Sandy dam construction
Bull Run, Big Sandy canal excavation
Bull Run, Big Sandy canal excavation
Bull Run, Big Sandy Dam, end of tunnel
Bull Run, Big Sandy Dam, end of tunnel
Bull Run, Big Sandy tunnel construction
Bull Run, Big Sandy tunnel construction
Bull Run, Little Sandy Dam, flume bridge over Little Sandy River
Bull Run, Little Sandy Dam, flume bridge over Little Sandy River
Bull Run, Little Sandy Dam , top of transformer house
Bull Run, Little Sandy Dam , top of transformer house
Bull Run, Little Sandy Dam, powerhouse
Bull Run, Little Sandy Dam, powerhouse
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 canal excavation
Bull Run, Big Sandy dam canal excavation
Bull Run, Big Sandy canal excavation
Bull Run, Big Sandy canal excavation
Bull Run, Big Sandy bridge
Bull Run, Big Sandy bridge
Bull Run, Big Sandy gravel pit and bunkers
Bull Run, Big Sandy gravel pit and bunkers
Bull Run, Little Sandy Dam, overall view
Bull Run, Little Sandy Dam, overall view
Bull Run, Little Sandy Dam bridge
Bull Run, Little Sandy Dam bridge
Bull Run, Big Sandy dam construction
Bull Run, Big Sandy dam construction
Big Sandy camp
Big Sandy camp
Big Sandy camp
Big Sandy camp
Bull Run, Big Sandy Dam grade for flume
Bull Run, Big Sandy Dam grade for flume
Bull Run, Big Sandy dam construction
Bull Run, Big Sandy dam construction
Bull Run, Little Sandy Dam, hydraulic excavation
Bull Run, Little Sandy Dam, hydraulic excavation
Bull run, Little Sandy Dam , lumber carrier
Bull run, Little Sandy Dam , lumber carrier
Bull Run, Big Sandy Dam canal and flume construction
Bull Run, Big Sandy Dam canal and flume construction
Station G, Cazadero power station
Station G, Cazadero power station
Station G, Cazadero Dam
Station G, Cazadero Dam
Station G, Cazadero Dam
Station G, Cazadero Dam
Oak Grove project, upstream from lower dam site at intake
Oak Grove project, upstream from lower dam site at intake
Oak Grove project, camp #6 looking southwest
Oak Grove project, camp #6 looking southwest
Results 57 to 84 of 109