Aerial photograph and survey of Bradford Island and the construction of the Bonneville Dam on the Columbia River. Written labels on the print indicate the locations of the fish hatchery, ship locks, power house, and more. Writing on the top right of the print reads, "Aerial view from 5,000 ft. elev. Bonneville Power and Navigation Project. Cost 32,200,000. Construction period - Nov. 1933 - Dec. 1937." Other writings on the print indicate this was taken on March 27, 1935 by Brubaker Aerial Surveys. Stamp on the back of the print requests that Brubaker be given credit for the photograph.

Aerial photograph of the Bonneville Dam on the Columbia River in the Columbia River Gorge. Looking east, up the river. Stamp on the back of the print reads, "Taken by the U.S. Department of the Interior, Bonneville Power Administration, Portland, Oregon. Please credit." Second stamp reads, "H.W.S. Apr 1, 1948." Third stamp reads, "Beaver Engraving Co." of Portland, Oregon.

An aerial view showing the Willamette River in Oregon City, looking south. The Oregon City Arch Bridge crosses the Willamette River, to the west of Main Street. Willamette Falls, and a Portland General Electric dam and hydroelectric power plant can be seen on the river to the south of the bridge. Streets and houses in a grid pattern are on the east side of the river. Photographed with a K-25 camera (negative 3 of 14).

An aerial view showing the Willamette River in Oregon City, looking south. A dam can be seen at Willamette Falls, with a Portland General Electric hydroelectric power plant visible on the right side of the river. Roads are on either side of the river. Photographed with a K-25 camera (negative 2 of 14).

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.

Negative of a photographic postcard showing the Bonneville Dam and a fish ladder in the foreground. Water rushes through the open spillway gates, also known as floodgates, of the dam on the Columbia River. There is a large mountain in the background. Handwriting on negative reads, "Bonneville Dam - Fish Ladder." There are markings near the top of the negative.

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 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."

Photograph showing a man standing with construction debris during canal excavation for the Big Sandy Dam project (likely Marmot Dam). Large rock and pieces of wood can be seen throughout the image. In the background, other men can be seen next to a wooden wall. Written on the negative is “B.S.1.”

Photograph showing construction at the Big Sandy Dam (likely the Marmot Dam). Workers can be seen inside of a long wooden structure (flume?) while one can be seen at the top. On the right side of the frame is a loose hillside. Written on the image is B.S-35.”

Photograph showing construction at the Big Sandy Dam (likely the Marmot Dam). Multiple men can be seen standing on the wooden structure at the base of a loose hillside, while a wooden building and platform can be seen at the top of the frame. Written on the image is B.S-7.”

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 at the Big Sandy Dam (likely the Marmot Dam). Several men can be seen standing on the wooden structure at the center of the frame. In the background, a wooden bridge crosses the river, surrounded by trees. Written on the image is B.S-19.”

Photograph showing the spillway of the Big Sandy Dam (likely the Marmot Dam) while under construction. Works can be seen standing at the top of the structure, while several wooden buildings can be seen in the background. Written on the image is “B.S. 26.”

Photograph showing construction at the Big Sandy Dam (likely the Marmot Dam). In the foreground, two men stand on top of the wooden spillway structure, while other works can be seen in the background towards the hillside. Gravel and more wood can be seen towards the top of the hill. Written on the image is B.S-37.”

Photograph showing the Big Sandy Dam (likely the Marmot Dam) spillway with flowing water, taken looking upriver. A cement divider can be seen at the top of the spillway, in front of a small wooden structure and platform. Written on the negative is “B.S. 52.” (Image note: discoloration visible at right side of image).

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. (Image note: some discoloration at edges of negative).

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.”

Interior image of Station O room with governor and generator devices.

Photograph showing construction at the Little Sandy Dam. A wooden structure is visible at both sides of the flowing river, with men standing on top of the structure. In the background is a wooded hillside and small wooden structure. Written on the negative is “Progress L.S. Dam, Freshet Oct 3, 2911.” (Image note: edge of glass is broken, obscuring some text).

Photograph showing construction at the Little Sandy Dam. A wooden structure is visible at both sides of the flowing river, with men standing around at ground level. In the background is a wooded hillside and small wooden structure.

Photograph taken on railroad tracks, looking at tracks and a seated man in a small rail car. Wooden and gravel debris can be seen throughout the image, and a small wooden building can be seen at the left side of the frame on a hillside. Written on the negative is “0-338” and “July-3-1912.”

Photograph taken from a high angle showing a man in a hat and long jacket standing in a incomplete switch room. The floor is lined with metal mesh sheeting with pipes. Written on the negative is “E301-0-3420.”

Photograph taken from a side angle showing the incomplete powerhouse at the Little Sandy Dam. The building is surrounded by wooden scaffolding, with wood debris littering the ground. Works can be seen throughout the image. Written on the negative is “#23 Oct, 10. 1911.”

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 showing the interior of the high tension switch room at the Little Sandy River Dam. Multiple electrical units and insulators can be seen throughout the photograph. Written on the negative is “0354.”

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.”