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Portland General Electric Photograph Collection Dams--Design and construction With digital objects English
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Big Sandy entrance to tunnel
Big Sandy entrance to tunnel
Bull Run, penstock tunnel
Bull Run, penstock tunnel
Bull Run, reservoir
Bull Run, reservoir
Bull Run, flume
Bull Run, flume
River Mill Dam, last unit
River Mill Dam, last unit
Bull Run, Little Sandy Dam construction
Bull Run, Little Sandy Dam construction
Bull Run, Little Sandy
Bull Run, Little Sandy
Little Sandy Dam, intake on river about 3.5 miles above Bull Run
Little Sandy Dam, intake on river about 3.5 miles above Bull Run
Little Sandy Dam, drop gate on Bull Run flume
Little Sandy Dam, drop gate on Bull Run flume
Bull Run, power plant flume
Bull Run, power plant flume
Bull Run, flume with motorcar
Bull Run, flume with motorcar
Bull Run, Little Sandy Dam, forms for penstock valves
Bull Run, Little Sandy Dam, forms for penstock valves
Bull Run, Little Sandy Dam high tension switch room
Bull Run, Little Sandy Dam high tension switch room
Bull Run, Little Sandy Dam intake
Bull Run, Little Sandy Dam intake
Bull Run, Little Sandy Dam penstocks
Bull Run, Little Sandy Dam penstocks
Bull Run, Little Sandy Dam flume
Bull Run, Little Sandy Dam flume
Bull Run, Little Sandy Dam construction
Bull Run, Little Sandy Dam construction
Bull Run, Little Sandy Dam, high tension switch room 57,000
Bull Run, Little Sandy Dam, high tension switch room 57,000
Bull Run, powerhouse from bridge
Bull Run, powerhouse from bridge
Bull Run, Penstock from above powerhouse
Bull Run, Penstock from above powerhouse
Bull Run, Little Sandy Dam flume
Bull Run, Little Sandy Dam flume
Bull Run, Little Sandy Dam, overall view
Bull Run, Little Sandy Dam, overall view
Bull Run, Little Sandy Dam penstocks from rise
Bull Run, Little Sandy Dam penstocks from rise
Bull Run, Little Sandy Dam, power plant exterior
Bull Run, Little Sandy Dam, power plant exterior
Bull Run, Little Sandy Dam, rooming house
Bull Run, Little Sandy Dam, rooming house
Bull Run, contractors camp
Bull Run, contractors camp
Bull Run, site of depot
Bull Run, site of depot
Bull Run, Big Sandy dam construction
Bull Run, Big Sandy dam construction
Results 29 to 56 of 109