Glendale-Hyperion Viaduct, Spanning Golden State Freeway (I-5) & Los Angeles River at Glendale Boulevard, Los Angeles, Los Angeles County, CA

Significance: Glendale-Hyperion Bridge is significant as one of the twelve Historic bridges over the Los Angeles River determined eligible for the National Register of Historic Places. It has also been designated City of Los Angeles Historic-Cultural Monument #164 declared October 20, 1976. Glendale-Hyperion viaduct solved a serious problem of traffic congestion and improved the main traffic artery between the City of Los Angeles and Glendale. The construction of a viaduct across the river, two smaller viaducts connecting adjoining street, a Pacific Electric Railway underpass and a street grade separation, provided a connection to Hyperion Avenue, part of a planned cross-town thoroughfare to the west of Los Angeles bypassing downtown.
Unprocessed Field note material exists for this structure: N847
Survey number: HAER CA-272
Building/structure dates: 1926-1928 Initial Construction