View of viaduct over the Los Angeles River on Aliso Street, Los Angeles, 1923 

New 7th Street viaduct over Los Angeles River, Los Angeles, 1930 

Soto Street viaduct over Ramona Boulevard, Los Angeles, 1938 

View of First Street viaduct over the Los Angeles River, looking east from near west end of viaduct, Los Angeles, 1923 

View looking north from east bank of Los Angeles River, Los Angeles, 1930 

Sixth Street viaduct over Los Angeles River, Los Angeles, 1938 

Sixth Street viaduct over Los Angeles River, Los Angeles, 1938 

First Street viaduct over Figueroa Street looking south, Los Angeles, 1940 

View looking southeast from point in Santa Fe yards north of 4th Street showing timber trusses, Los Angeles, 1930 

View looking north from 4th Street Viaduct over ravine and Lorena Street, Los Angeles, 1937 

View showing bridge over the Los Angeles River at Ninth Street, and automobile traffic, Los Angeles, 1923 

Congestion at east end of Seventh Street viaduct over the Los Angeles River caused by closed crossing gates, Los Angeles, 1923 

Bridge over the Los Angeles River on East Ninth Street, Los Angeles, 1923 

Washington Street bridge over Los Angeles River, Los Angeles, 1934 

Lorena Street-4th Street grade separation, Los Angeles, 1930 

Grade crossing Alameda Street over Southern Pacific Railway, Burbank, Los Angeles County, 1928 

Bridge over Los Angeles River on East 26th Street, Los Angeles, 1934 

Viaduct on Sunset Boulevard over Myra Street, Los Angeles, 1931 

Looking south at new bridge over Los Angeles River on Pacoima Avenue showing "S" turn in alignment, Los Angeles, 1929 

Viaduct over Pico Boulevard at San Vicente from point in center of Keniston Avenue north of Pico Boulevard looking south at P.E. viaduct over Pico Street [sic], Los Angeles, 1927