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Clackamas County (Or.) Bridges
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Bull Run, Big Sandy bridge

Photograph showing a wooden bridge at the Big Sandy Dam (likely the Marmot Dam). Water is flowing under the bridge, and in the distance several wooden structures and utility poles are visible. Written on the negative is “B.S.4.” (Image note: some discoloration visible at left side of image).

River Mill, suspension bridge

Photograph showing a suspension bridge over the Clackamas River in near the River Mill dam area. The bridge crosses between two tall cliff faces, beyond which the river can be seen around. Snow is on the ground throughout the image. Written on the negative is “Feb 3, ‘10, PES 2014.”

River Mill Dam

Photograph showing the left bank of the Clackamas River at the river Mill Dam, taken from the “island.” Near the center of the frame, two men in long jackets stand next to a surveying station. To the left, another man in a hat and jacket looks at the camera. In the distance, men can be seen working on the dam spillway. Written on the negative is “#70M. 11-28-10.”

Bull Run, Little Sandy Dam bridge

Photograph taken from a high angle showing a bridge over the Little Sandy River during snowfall. In the distance, men can be seen spraying water out of a hose towards the river. On the left side of the bank is a wooden structure surrounded by trees. Is the distance, snowy trees can be seen on a hillside. Written on the negative is “0261.”

Timothy Lake, log bridge

Photograph showing Timothy Lake early in the water release process. A bridge of cut logs and wood planks extends to the far shore of the lake, with a rowboat moored to a section of the structure. Cut stumps on a hillside can be seen in the distance. Written on the negative is "56-251."

River Rill

Photograph showing the Clackamas River in the river Mill area, with numerous “islands” and cliffs. A wooden suspension bridge can be seen spanning two cliffs near the center of the frame, with numerous wooden buildings visible in the distance. Written on the negative is “#58M. 8-12-10.”

River Mill

Photograph looking downstream looking towards the “island,” with a wooden suspension bridge visible. In front of the bridge a blurry man can be seen facing the camera. Beyond the bridge is a small wooden building next to several vertical poles. Written on the negative is “#60M. 10-10.”

River Mill spillway

Photograph showing the construction of the spillway at the River Mill Dam. At the left side of the frame, a portion of a wooden suspension bridge can be seen. Behind, a railroad bridge spans the space between two cliffs, beyond which wooden buildings are visible. Written on the negative is “#84M. 1-28-11.”

Portland General Electric Photograph Collection

  • Org. Lot 151
  • Collection
  • 1880 - 1965

Negatives documenting company activities, including electrical infrastructure, employees, power generation and distribution throughout Portland, the Willamette Valley and the Oregon Cascade Range. Additional general images include streetcars and trains, street lighting, power line installation, Rose Festival floats, office buildings, car barns and bridges. Of particular note are dam building projects at Bull Run and along the Clackamas River (1910-1930), and early electric stations in Oregon City at Willamette Falls.

Portland General Electric Company