Salt River Bridge, Spanning Salt River at Dillon Road, Ferndale, Humboldt County, CA

Significance: The Salt River Bridge, also known as the Valley Flower Bridge, determined eligible for inclusion in the National Register of Historic Places in 1987, represents a major example of the work of a significant designer. When built in 1919, this was recognized as the world's longest reinforced concrete girder bridge, whose 142-foot spans were nearly twice as long as the previous longest concrete bridge girders.

Survey number: HAER CA-126

Building/structure dates: 1919 Initial Construction

vehicular bridges highways concrete girder bridges transportation california salt bridge salt river bridge salt river dillon dillon road ferndale humboldt humboldt county henry john brunnier thomas engelhart historic american engineering record humboldt county board of supervisors a j logan david maul valley flower cooperative creamery photo ultra high resolution high resolution library of congress national register of historic places

1969 - 1980

Library of Congress

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