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.

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 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 long lines of railroad cars in the flood water of the Vanport Flood. The railroads are underwater. Taken from the east side of the Willamette River, with the west hills of Portland, Oregon visible in the background. 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, 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 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 the Hawthorne Bridge over the flooded water of the Willamette River in Portland, Oregon during the Vanport Flood. The draw bridge is up and a boat passes underneath. Handwritten note on back indicates this was taken May 30, 1948. Taken by an unidentified student at the Northwest School of Photography.

Photograph of a train crossing the Steel Bridge over the flooded water of the Willamette River in Portland, Oregon during the Vanport Flood. The high water touches 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.

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.

Photograph of widespread flooding on the Willamette River during the Vanport Flood. Taken from the east side of the river, there is a submerged railroad in the foreground. 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, a large industrial building is surrounded by water. 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.