Alvord Lake Bridge, San Francisco, San Francisco County, CA
Photo Caption Pages
San Francisco, CA
Find maps of San Francisco, CA
Documentation compiled after 1968.
Survey number HAER CA-33
Building/structure dates: 1889 initial construction
Significance: This structure is the first reinforced concrete bridge in America. Though only 20 feet in span, the bridge utilized Ransome twisted steel bars and served as predecessor for thousands of reinforced concrete bridges built in the 20th century.
Concrete Arch Bridges
Ransome, Ernest L.
City Of San Francisco
Lowe, Jet, Photographer
Historic American Engineering Record (Library of Congress)
1. GENERAL VIEW LOOKING NORTHWEST
2. GENERAL VIEW LOOKING SOUTHEAST
3. GENERAL VIEW LOOKING EAST
4. DETAIL VIEW OF ARCH SHOWING CONCRETE 'STALACTITES'
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