Sixth Street Viaduct, 1932

November 9, 1932, this view of Sixth Street Viaduct was taken from the west bank of the Los Angeles River. Thanks to Los Angeles Relics.

Thanks to Water & Power for the following shots of the 6th Street Bridge. Construction of the Bridge began in 1932.

Here are some excellent pics of the bridge's construction. 

1931, A few workers scattered along the wooden forms on the eastern side of the bridge. October 27, 1931. | Courtesy of the Los Angeles City Archives' Special Collections, Office of the City Clerk.  From PBS So Cal.

1935, Downtown Los Angeles from the 6th Street Bridge.  Thank you to Los Angeles Relics.