Photograph of 4 men wearing hard hats and standing in front of an SP&S train. Two of the hard hats are labeled, "Visitor." They look at the camera and smile. Handwritten note on the back of the print reads, "Left to right: Bill Harding - Mgr. A. GC., Bill Crosbie, Bill Fry, Frank Amerata. Contractor's special to McNary Dam, Thursday, June 3, 1954."

Photograph of a portion of the Bonneville Dam under construction. Two construction workers stand on construction materials that are suspended in the air, moving from one location to another.

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 a portion of the Bonneville Dam under construction. Construction workers work on the dam.

Photograph of a portion of the Bonneville Dam under construction. The mountains of the Columbia River Gorge are visible in the background.

Photograph of a model of the Bonneville Dam. The model was built by U.S. Engineers, and labels mark the main dam, spillway, fish elevators, power house, and more. A railroad in the foreground of the model is labeled "Spokane, Portland & Seattle Ry." Additional writing on the print indicates the quantities and costs involved in building the dam. Copyright on bottom of print for Photo-Art Commercial Studios in Portland.

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.

Photograph showing the Faraday flume for generating Station G. Below the flume structure, the Clackamas River can be seen, with several small waterfalls flowing off the hillside above.

Photograph looking upstream, below proposed upper dam site at Cazadero Dam/Station G. A railroad track and flume can be seen running into the distance around a hillside, and two possible construction vehicles are visible. The river can be seen on the left side of the frame.

Photograph of the Cazadero flume at generating Station G, showing a compressed air concrete mixer on a train car. Two men stand at either side of the mixer while looking at the camera.

Photograph of the Cazadero flume at generating Station G, showing air compressor and pipelines weld, in placing concrete for new bents. Several cars can be seen on a railroad track, and the flume can be seen running along the right side of the frame.

Photograph showing the Cazadero Dam flume running into the distance. Trees (possible burned) can be seen on both sides of the (excavated?) canal.

Photograph looking towards flume and railway tracks at Cazadero Dam/ Station G. A man stands on the railway tracks in the distance, and a dirt hillside drops down between the tracks and the flume.

Photograph taken from a side angle, showing the flume at the Cazadero Dam/Station G. Below the wooden flume is a dirt hillside with rocks, and a long wooden building can be seen in the background on the right side of the frame.

Photograph taken from above Cazadero Dam/Station G, looking downriver towards the spillway and wooden dam structure. Behind, a dirt hillside and trees can be seen.

Photograph showing construction of Cazadero Dam. Several workers can be seen in the distance at the top of a stacked wooden dam structure, with a dirt hillside above. The Clackamas River is visible at the bottom of the dam, and trees (possibly burnt) can be seen at the top of the hill.

Photograph showing completed re-decking on the spillway at Cazadero Dam/Station G. Wood debris can be seen in the water below the spillway, and leftover ropes, ladders and tools are visible on the lower walkway.

Photograph showing in-progress re-decking of the spillway at the Cazadero Dam/Station G. Men are visible at the top and bottom of the structure, and water and wood debris can be seen below the spillway.

Photograph showing in-progress re-decking of the spillway at the Cazadero Dam/Station G. Men are visible at the top and bottom of the structure, and water and wood debris can be seen below the spillway.

Photograph showing workers during re-decking of the Cazadero Dam. Four men stand at the top of the structure, while one sits on a ladder looking upward. Another part of the wooden dam is visible in the background.

Photograph showing the Cazadero Dam during a flood, before the placement of a new apron. Fast flowing water spills over the dam.

Photograph showing construction at Cazadero Dam. The Clackamas River can be seen flowing on the right side. Ice formations are on the hillside to the left, and snow and frost can be seen on the wooden dam structure.

Photograph of a construction at the Cazadero Dam during construction. Wooden structure is visible with water from the Clackamas River flowing through the bottom, towards the camera.

Photograph showing construction at Cazadero Dam. The Clackamas River can be seen flowing through the bottom of the dam, and trees are visible on the hillside in the distance.

Photograph showing construction at Cazadero Dam. The Clackamas River can be seen flowing through the bottom of the dam, and trees are visible on the hillside in the distance. (Image note: similar to PGE7-6, but appears to show further stage of completion).

Photograph showing the exterior of the Cazadero power station taken from across the Clackamas River. Four large pipes run uphill from the building. Previously burnt trees can be seen in the background.

Photograph of a man standing in the Cazadero Dam/Station G transformer house. The man wears a hat and a work apron. The inside of the walls are wooden, with a brick wall visible in the background.

Photograph, taken from across the river, of the Cazadero powerhouse/Station G. Part of the roof is incomplete, and three pipes run from the building up the hill. A stairway next to the pipes goes from the building to the top of the hill.