An aerial view of the Sandy River in Troudale, during a flood. Looking southeast, two bridges can be seen crossing the river (negative 1 of 6).

An aerial view of a flooded roadway near Troutdale, most likely on the Columbia River. Cows can be seen on the road (negative 5 of 6).

An aerial view of a flood on the Sandy River in Troutdale. A bridge over the river, at the Historic Columbia River Highway, can be seen over the river, with flooded buildings visible throughout the frame (negative 2 of 6).

People laying sandbags near a dike at Marine Drive and Gertz Road in Portland. Flood water can be seen at the left side of the frame, next to the line of sandbags, as people fill more bags on the right (negative 1 of 7).

A woman places chickens into the trunk of a car near Gertz Road and Marine Drive, while evacuating during a flood in Portland (negative 3 of 7).

A line of sandbags in front of flood water, at Marine Drive and Gertz Road in Portland. An area of house boats can be seen at the other side of the line (negative 5 of 7).

An aerial view of a flooded Columbia River at the Narrows, east of the Dalles. Swiftly moving water can be seen by rocky outcrops, and flooding two large buildings in the distance. This photograph was published in the Oregon Journal on Tuesday, June 1, 1948 (negative 1 of 21).

An aerial view of the Bonneville Dam during a flood on the Columbia River. High water can be seen reaching towards the top of the dam structure (negative 10 of 21).

People stacking sandbags next to the Columbia River during a flood, most likely in the Dalles area. The line of sandbags cross a train track, with the river and several industrial buildings visible in the distance (negative 3 of 21).

People laying sandbags near a dike at Marine Drive and Gertz Road in Portland. Several young men are carrying bags while standing in an area that’s been reinforced (negative 6 of 7).

People stand on a stack of sandbags, in the Dalles, Celilo,or Bonneville area. The men look downward at what appears to be water flowing over the top of the bags (negative 6 of 21).

An aerial view of flooded building on the Columbia River, in the Dalles, Celilo,or Bonneville area (negative 7 of 21).

People loading Oregon Journal newspapers onto a small airplane, to be delivered to Vancouver and surrounding communities during a flood. A truck with “The Journal” painted on the side is parked next to the airplane. Most likely taken in Portland (negative 1 of 2).

People loading Oregon Journal newspapers onto a small airplane, to be delivered to Vancouver and surrounding communities during a flood. Trucks with “The Journal” painted on the side are parked next to the airplane. Most likely taken in Portland (negative 2 of 2).

People moving dirt on a dike in the Blue Lake and Troutdale area, during a flood event. Piles of dirt can be seen along the shoulder of a raised dirt road (negative 1 of 16).

People building up a sandbag barrier at a dike in the Blue Lake and Troutdale area. Two people sit in a vehicle in an area being inundated with water (negative 13 of 16).

Military trucks, holding waving servicemen (Army Corps of Engineers?), drive down a road in the Troutdale area, most likely arriving to do dike work during a flooding event (negative 14 of 16).

A man points downward at a water boil on a dike in the Blue Lake and Troutdale area. The boil has been surrounded by a ring of sandbags (negative 5 of 16).

Bundles of shovels on a pile on dirt, used during dike work in the Blue Lake and Troutdale area (negative 8 of 16).

People next to a water boil on a dike near Blue Lake and Troutdale. One man is climbing a utility pole while others water from the ground. The water boil is surrounded by several rings of sandbags (negative 6 of 16).

View of flood waters in Fulton Park. Caption from the negative sleeve reads, "Fulton [Park] - high water, S20, LW3-20."

Photograph taken during a flood in February of 1890, showing an old Station A building in Oregon City surrounded by moving water. In the foreground of the frame a wooden waterwheel is visible. An older paper frame can be seen around the edge of the photograph.

Photograph showing a cable car during the “Great Flood of Portland” in 1894. Several men and women sit in the car, and four men stand in the water, all looking at the camera. On the right side, a woman and a baby are visible. The photograph is a reproduction of a pinned image (pins can be seen on the frame), and the caption reads “Photos, of the Great Flood of Portland, Or. June 4th 1894.” Also on the caption is written “Pro. G. L. Eastman Cor, First and Taylor Streets.”

Photograph showing the South Fork of the Clackamas River during a flood, taken from next to the river. On the left side of the frame is a rough cliff-face with fallen rocks. Written on the negative is “E301.09-O-43” and “21.”

Photograph looking up the Clackamas River, taken during a flood. On the right side, a cut road can be seen crossing the hillside, with several small flowing waterfalls. Written on the negative is “E301.09-O-46” and “19.”