Carroll Overhead Bridge, Altamont Pass Road, Livermore, Alameda County, CA
Photo Caption Pages
Altamont Pass Road, Livermore vicinity, CA
Find maps of Livermore, CA
Documentation compiled after 1968.
Survey number HAER CA-52
Building/structure dates: 1922 initial construction
Significance: The Carroll Overhead Bridge is composed of 26 spans of reinforced concrete T beams, with a curvilinear alignment and superelevation. Built in 1922-1923, it is the longest bridge of its type and age in the tri-county area of Alameda, Contra Costa and Santa Clara Counties. It is one the earliest curvilinear alignment concrete bridges in California. It is associated with the careers of two locally significant engineers: P.A. Haviland and George A. Posey. It has been determined eligible for inclusion in the National Register, meeting Criteria B and C at the local level.
Haviland, Perry A.
Posey, George A.
Standard Industrial Engineering Corporation
Southern Pacific Railroad
County Of Alameda Public Works Agency
Snyder, John, Field Team
Andersen, Ed, Photographer
Snyder, John, Historian
Historic American Engineering Record (Library of Congress)
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