Photograph of a flooded area of the Willamette River in an industrial area of Portland, Oregon during the Vanport Flood. Taken from the east side of the river. There are several ships docked in the Willamette. Handwritten note on back indicates this was taken May 31, 1948. Taken by an unidentified student at the Northwest School of Photography.

Photograph of the Burnside Bridge over the flooded water of the Willamette River in Portland, Oregon during the Vanport Flood. Handwritten note on back indicates this was taken May 30, 1948. Taken by an unidentified student at the Northwest School of Photography.

Photograph of widespread flooding on the Willamette River during the Vanport Flood. Taken from the east side of the river, a large industrial building is surrounded by water. Taken by an unidentified student at the Northwest School of Photography.

Norwegian ship Thomas S. Gregory, stuck at the outlet of the Swan Island lagoon in Portland. Buildings at University of Portland can be seen above the Willamette River. A photograph from this series was published in the Oregon Journal on Thursday, May 20, 1948 (negative 2 of 5).

An aerial view of University of Portland, looking northwest. The Willamette River can be seen curving around a bluff, with the Burlington Northern Railroad Bridge 5.1 spanning across (negative 3 of 4).

An aerial view, looking north, showing Southeast Portland and the Willamette River. Bridges can be seen crossing the river, including the Ross Island Bridge, Hawthorne Bridge, and Steel Bridge. At the center of the frame is large train yard. Photographed with a K-25 camera (negative 10 of 14).

Ice floating in the Willamette River, looking south through the Hawthorne Bridge towards the Ross Island Bridge. Sheets of nice can be seen on top of the water (negative 5 of 11).

Ice floating in the Willamette River, looking east along the 1905 Morrison Bridge. A bridge house can be seen attached to the side of the bridge, over floating chunks of ice on the river (negative 9 of 11).

Automobiles driving a newly opened ramp on the Steel Bridge in Portland. The Burnside Bridge and Willamette River can be seen in the distance. Photograph from this series were published in the Oregon Journal on Saturday, August 12, 1950 (negative 1 of 7).

A view of the Willamette River during a high water event, looking south towards the old Morrison Bridge. Beyond the bridge is the Hawthorne Bridge and Oregon Journal building on S.W. Front Avenue. The water can be seen close to the bottom of the Morrison Bridge (negative 6 of 20).

Two men on a small boat approach the Steel Bridge, during a high water event in Portland. Looking north, the Broadway Bridge can be seen upriver. The water appears to be approaching towards the bottom of the bridge (negative 9 of 20).

Photograph of a flooded area of the Willamette River during the Vanport Flood. In the foreground, a train is surrounded by water as the railroad is flooded. Taken from the east side of the river. Handwritten note on back indicates this was taken May 31, 1948. Taken by an unidentified student at the Northwest School of Photography.

Photograph of widespread flooding on the Willamette River during the Vanport Flood. Taken from the east side of the river, several ships can be seen floating in the high water. Handwritten note on back indicates this was taken May 31, 1948. Taken by an unidentified student at the Northwest School of Photography.

Photograph of a swing bridge, possibly the Morrison Bridge, turned on its axis above the high water of the Willamette River in Portland, Oregon during the Vanport Flood. Handwritten note on back indicates this was taken May 30, 1948. Taken by an unidentified student at the Northwest School of Photography.

A line of house boats on the Willamette River at the Holegate moorage in Portland. A line of logs can be seen next to the boats, with a larger log floating further in the river (negative 8 of 10).

An aerial view of the Oregon Journal building, Willamette River, and Hawthorne Bridge in the snow. Looking east, the central east side industrial district can be seen at the other side of the river (negative 2 of 10).

Ice floating in the Willamette River, in front of the Oregon Journal building. Looking west over the river, the snow covered west hills can be seen in the distance (negative 1 of 11).

Ice floating in the Willamette River in Portland. Boats are moored to a dock, including the “SSS Tradewinds, Portland.” At the other side of the river is a industrial facility emitting smoke. An ice sheet is clearly visible on the river (negative 2 of 11).

A dog and man stand on a dock while an Standard Oil tanker approaches, most likely in Portland and the Willamette River. The dog sits on the top of a wooden pillar facing towards the ship (negative 1 of 6).

High water on the Willamette River during a high water event in Portland. A cement docking area can be seen extending towards the camera, with one end of the Burnside Bridge visible in the distance. Several warehouse buildings are next to the river (negative 1 of 20).

An aerial view of the Steel and Broadway Bridges over the Willamette River in Portland, with a recent dusting of snow. Looking northwest, Union station and a train yard can be seen on the west side of the river (negative 6 of 10).

Ice floating in the Willamette River, looking north from the Hawthorne Bridge towards the Morrison Bridge. A boat is moored on a snow-covered dock (negative 4 of 11).

Photograph of the Hawthorne Bridge over the flooded water of the Willamette River in Portland, Oregon during the Vanport Flood. Handwritten note on back indicates this was taken May 30, 1948. Taken by an unidentified student at the Northwest School of Photography.

Photograph of widespread flooding on the Willamette River during the Vanport Flood. Taken from the east side of the river, several ships can be seen floating in the river. Handwritten note on back indicates this was taken May 31, 1948. Taken by an unidentified student at the Northwest School of Photography.

Photograph of widespread flooding of the Willamette River at Oaks Amusement Park in Portland, Oregon during the Vanport Flood. Taken by an unidentified student at the Northwest School of Photography.

Norwegian ship Thomas S. Gregory, stuck at the outlet of the Swan Island lagoon in Portland. Buildings at the University of Portland can be seen above the Willamette River. This photograph was published in the Oregon Journal on Thursday, May 20, 1948 (negative 3 of 5).

A dog uses a rope to assist the docking of a Standard Oil tanker at a Portland dock. It appears to be grabbing a rope with its mouth, coming from the edge of the dock at the right side of the frame, where the oil tanker can be seen. A small building with a ramp has been built on the dock (negative 5 of 6).

Photograph of the Steel Bridge over the flooded water of the Willamette River in Portland, Oregon during the Vanport Flood. The high water has reached the bottom of the bridge. Handwritten note on back indicates this was taken May 30, 1948. Taken by an unidentified student at the Northwest School of Photography.