From the
early to mid-twentieth century barges and towboats came
down the Columbia River and into the Slough through the
City Canal carrying horses for slaughter and logs to the
mills. By the 1930s, federal projects heralded the development
hopes of the future. The New Deal's WPA provided jobs
building the Portland International Airport and the St.
Johns Landfill on the Slough. WWII brought prosperity
to north Portland as shipyard workers settled there.
After
the war, many changes took place in Slough communities.
The shipyards closed, leaving many jobless. In 1948 the
Vanport Flood plugged the City Canal, halting commercial
navigation. Increased stagnation in the Slough resulted
from loss of tidal action from the Columbia River, and
by the 1950s mills and slaughterhouses shut down.
The Port of Portland sponsored WPA Project
975 to build the Portland International Airport in 1936.
Photo courtesy of the Oregon Historical Society