Photograph, taken from one end, showing a wooden suspension bridge, probably the 1888 bridge over the Willamette River between West Linn and Oregon City. That bridge was replaced with the current arch bridge in 1922. The text “Bridges - Clackamas County” is written on the negative sleeve. Image note: Light leak on negative.

Photograph, taken from one end, showing a wooden suspension bridge, probably the 1888 bridge over the Willamette River between West Linn and Oregon City. That bridge was replaced with the current arch bridge in 1922. The text “Bridges - Clackamas County” is written on the negative sleeve. Image note: Light leak on negative.

Exterior view of a log A-frame cabin at the Wilhoit Springs Resort near Molalla, Oregon. The front of the cabin is decorated with fern fronds and smoke rises from the chimney. Above the door is written "The Alaskain [sic]." Handwriting on the negative reads. "A Summer Home Wilhoit, Or. #120" and "Drake Photo."

Photograph showing a camp at Big Sandy Dam, made up of wooden buildings surrounded by trees. Electric lines and utility poles can be seen throughout the image. Written on the negative is “339 Big Sandy Camp.”

Photograph showing a camp at Big Sandy Dam, made up of wooden buildings surrounded by trees. The buildings are in a row on a gradual incline, and piles of wood and cut trees can be seen. Written on the negative is “340 Big Sandy Camp.”

Photograph of river showing tunnel entrance and wooden structures along water edge. Wooded hillsides are seen at both sides of the river. Two men stand at the tunnel entrance.

Photograph showing a temporary wooden dam at the Big Sandy Dam site (likely the Marmot Dam). Two workers stand on the wooden structure while looking upward at the camera. In the background, sandbags, woodpiles, and work tools can be seen. Written on the negative is “#33, Spillway in tempy dam at Big Sandy, Oct 21, ‘11.”

Photograph showing exterior of wooden and steel structure of flume at Bull Run.

Photograph of Bull Run flume showing a motorcar and man in a hat and suit.

Photograph of a governor device at Bull Run. A large wheel is on the front of the machine.

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

Photograph of Little Sandy Dam, showing train tracks and dam structure. Small wooden building can be seen on the right, with trees in the background.

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 looking downward at a wooden flume and railway track built on a hillside. The wooden structure continues into the distance, where more tree covered hillsides can be seen. In the bottom left corner of the frame, a man is looking at the camera and leaning against a cushioned seat, likely on a railway car. Written on the negative is “0-337, July-3-1912, Bull Run Flume.”

Photograph looking downward at a wooden flume and railway track built on a hillside. The wooden structure continues into the distance, where more tree covered hillsides can be seen. Written on the negative is “0-336.”

Photograph taken from a high angle showing the penstocks at the Little Sandy Dam. In the distance, numerous utility poles and electric lines are visible. Construction debris litters the ground throughout the image. Written on the negative is “0346.”

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 men in work wear standing on top of a wooden structure with rounded forms. Written on the negative is “intake 2-5-12.”

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 one man spraying water out of a large hose, while another man in a suit looks on. In the background is a train car with “P.R.RY.L. &P.Co” written on the side. Construction debris can be seen throughout the image. Written on the negative is “0348.”

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 incomplete interior of the powerhouse building at the Little Sandy Dam. Near the center of the frame, a man stands with folded arms looking towards the camera. Wooden scaffolding is visible throughout the image. In the background, a hillside of dirt and debris can be seen outside the building. Written on the negative is “E301-0-3405.” (Image note: discoloration visible at the right side of the frame).

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 of a rooming house building in the Little Sandy Dam area, with several people seated on a large porch while looking towards the camera. The building is two stories, with decorative points visible on the roof. Foliage and trees can be seen throughout the image. Written on the negative is “0-335.”

Photograph showing a man in work wear standing next to a generator unit at the Little Sandy Dam. Other units can be seen in the background of the image, while a raised platform with a ladder is behind the front unit. Written on the negative is “No 2 unit, 1-29-12, Bull Run Ore. (47).