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Carlotta vicinity

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Van Duzen Bridge, Spanning Van Duzen River at State Highway 36, Carlotta, Humboldt County, CA



B&W Photos

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Data Pages


Photo Caption Pages


Item Title


Location
Spanning Van Duzen River at State Highway 36, Carlotta vicinity, CA

Find maps of Carlotta, CA


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER CA-9
Building/structure dates: 1922 initial construction
Significance: This is a highway bridge of open spandrel reinforced concrete deck arch type. It is associated with John B. Leonard - leading proponent and important early designer of reinforced concrete bridges in California. It is also one of only three open spandrel type bridges known to be designed by Leonard. The structure is 464 feet in length, has two 207.5 foot arch spans, and is 20 feet wide.

Subjects
Arch Bridges
Bridge Construction
Transportation Engineering


Related Names
Leonard, John Buck
State Of California
Easton, Robert E., Field Team
Asano, Pete, Photographer
Snyder, John W., Historian


Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
1. Pete Asano, Photographer September 1981 VIEW NORTH OF UPSTREAM SIDE
2. Pete Asano, Photographer September 1981 VIEW NORTH OF UPSTREAM SIDE
3. Pete Asano, Photographer September 1981 VIEW SOUTHWEST OF DOWNSTREAM SIDE
4. Pete Asano, Photographer September 1981 VIEW TO NORTH. DETAIL OF UPSTREAM SIDE SHOWING CENTER PIER AND ARCHES TO CROWNS
5. Pete Asano, Photographer September 1981 VIEW TO NORTH. DETAIL OF UPSTREAM SIDE OF CENTER PIER
6. Pete Asano, Photographer September 1981 VIEW TO WEST ALONG UPSTREAM SIDE
7. Pete Asano, Photographer September 1981 VIEW TO WEST ALONG UNDERSIDE OF BRIDGE FROM EAST ABUTMENT
8. Pete Asano Photographer September 1981 VIEW EAST ALONG DECK
9. Pete Asano, Photographer September 1981 VIEW WEST ALONG DECK
10. Pete Asano, Photographer September 1981 VIEW TO NORTH. DETAIL OF DECK, EXPANSION JOINT, AND NORTH RAIL


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