Negative of a photographic postcard showing the Bonneville power plant at the Bonneville Dam. The road leading to the plant is lined with flowers and a body of water is to the right. There are several power lines in the sky, transmitting electricity from the plant. Handwriting on negative reads, "Bonneville Power Plant. Columbia River Highway, Oregon. Christian 507."
Negative of a photographic postcard showing the Bonneville Dam. Water rushes through several spillway gates, also known as floodgates or stop gates. Handwriting on negative reads, "Spillway Gates Bonneville Dam, Oregon. Christian 11-509."
Negative of a photographic postcard showing an aerial view of the Bonneville Dam on the Columbia River in the Columbia River Gorge. Water rushes out of the spillway gates, also known as floodgates, of the dam. View looks east past the dam and up the river. Handwriting on negative reads, "Bonneville Dam - Oregon - Washington. Christian 11-625." Number printed in bottom right corner: 112189
Negative of a photographic postcard showing the Mill River Power Plant at the River Mill Dam in Estacada, Oregon. Water from the Clackamas River goes over the spillway. Handwriting on negative reads, "Mill River Power Plant - Estacada, Ore. Christian 11-6010."
Photograph showing machinery wreckage at Station B in Oregon City. Pieces of machinery can be seen throughout the image, disconnected and broken from the main mechanism.
Photograph showing the armature of a TY-20 generator at Station B in Oregon City. Several pieces sit on the floor, leaning against the unit, and large wooden blocks can be seen at the base.
Photograph of generator unit #3 at Cazadero Dam/Station G, taken two months after the 1908 accident due to equipment malfunction. On the front of the unit “General Electric Company” is written. A man stands on the left side of the frame with one hand on a wheel.
Photograph showing a man facing towards a large electrical generator at the Oak Grove Dam. On his right is a stairway leading to the upper level of the generator, which is in a large industrial powerhouse building. Written on the negative is "49-291."
Photograph showing a man wearing a long jacket standing on a raised cement platform. He is looking towards three large electrical units with belts, and water can be seen under the platform. In the background is a wooded hillside. Written on the negative is "51-868."
Photograph showing the exterior of the River Mill Dam powerhouse, likely shortly after construction. Loose hillsides can be seen to the left and right of the building, with transmission lines throughout (image note: corner of glass negative is broken and missing).
Photograph taken from a side angle of the River Mill Dam and powerhouse, showing exterior of building and view of dam structure. Water from the Clackamas River can be seen moving over the dam, and trees and transmission lines are visible in the distance.
Photograph showing the exterior to power plant buildings at the Little Sandy Dam, seen in a wooded setting. Two large buildings can be seen on a hillside, each with large windows. The building near the left side of the frame also includes transformer infrastructure on its roof. Written on the negative is “0356.”
Photograph showing the interior of the powerhouse at the Little Sandy Dam, showing several generator units and a man standing near the center of the frame. Written on the side of the units if “Westinghouse.” Behind the generators, details of the industrial building can be seen. Written on the negative is “0352.”
Photograph taken from a high angle looking downward at the interior of the powerhouse at the Little Sandy Dam. Several generator units are visible, as well as a platform accessible via ladders. Several large windows can be seen on the far walls. On the side of the generator units is “Westinghouse.” Written on the negative is “0351.”
Photograph showing construction at the Big Sandy Dam (likely the Marmot Dam). Workers can be seen on the wooden structure, with flowing water at the right side of the image. In the background are several small wooden structures. Written on the image is “B.S. 32.”
Photograph showing the Big Sandy Dam (likely the Marmot Dam) spillway with flowing water, taken looking upriver. A wooden platform can be seen crossing the dam above the water. Written on the negative is “B.S. 47.”
Photograph showing construction of the tunnel at the Big Sandy Dam (likely the Marmot Dam). A man stands next to a machine next to the tunnel entrance, which is emitting a large plume of steam. Wood and gravel is visible throughout the image. Written on the negative is “B.S. 48.”
Photograph of interior of Station P at Oak Grove project showing two pieces of large round (generator?) equipment. The building is industrial with large windows on visible walls.
Photograph of the exterior of Station B in Oregon City, with the flowing Willamette River in the foreground. Behind the brick building a hill with utility poles and three large tanks can be seen.
Photograph showing two men standing next to a 500V vertical railway generator at Station B in Oregon City. Both men are looking at the camera, and a stairway ladder between them leads to the top of the generator.
View of the Bonneville Dam on the Columbia River in the Columbia River Gorge. Taken from the shore of the Columbia River and looking east at water rushing out of the dam's spillways, also known as floodgates. Handwriting on the print reads, "Bonneville Dam - Columbia River Highway. D-107 Cross & Dimmitt." Stamp on the back of the print for Angelus Commercial Studios.
Photograph of a construction area located between the spillway of the Bonneville Dam and several railroad tracks. The Columbia River flows around the construction site and through the open spillways of the dam. There are 2 stamps on the back of the print. One is for Photo-Art Commercial Studios and the other for West Coast Engraving Co.
Photograph of water rushing out of the spillways of the Bonneville Dam in the Columbia River Gorge. Taken from the Washington side of the dam. A person leans over a railing on the lower right, watching the scene. A cloud of mist rises from the water. Stamp on the back of the print reads, "Restricted Photograph: Do not reproduce without written license agreement, Photo-Art Commercial Studios."
Photograph showing machinery wreckage at Station B in Oregon City. Pieces of wood and stone lay on the floor, along with pieces of disconnected machinery. At the back of the frame, a man stands in a doorway while looking at the camera.
Photograph of the exterior west wall of Station B in Oregon City, with the Willamette River. Two men work on a wooden lock gate. Numerous utility poles are visible throughout the image.
Photograph showing exterior damage one day after the 1908 wreck at the Cazadero Dam/Station G due to equipment malfunction. Broken windows and a damaged roofing are visible. Water flows out of pipes in the bottom of the building over the water.