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San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Francisco, San Francisco County, CA



B&W Photos


Data Pages


Drawings


Photo Caption Pages


Item Title


Location
Spanning San Francisco Bay, San Francisco, CA

Find maps of San Francisco, CA


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER CA-32
Unprocessed field note material exists for this structure (N679).
Building/structure dates: 1936 initial construction
Building/structure dates: 1963 subsequent work
Building/structure dates: 1989 subsequent work
Significance: The San Francisco-Oakland Bay Bridge is one of the most impressive engineering structures in the United States. It is also one of the most important transportation links in the United States, serving as the terminus of an interstate highway and as the linchpin for the transportation network of the San Francisco Bay Area, one of the nation's largest metropolitan regions. The bridge has been recognized by the American Society of Civil Engineers as a nationally significant structure from the standpoint of engineering as well as its importance in the transportation history of California and the nation. The Bay Bridge was also a milestone in the political history of the Bay Area. The history of the Bay Area is filled with controversies over transportation projects, from the 19th century debates over subsidies to the railroads, continuing through the freeway revolt of the 1950s and seemingly endless debates between supporters of transit and highway development in more recent decades. The long debate over construction of the Bay Bridge is remarkable for the fact that the people of the Bay Area and their political leaders united behind it with almost unanimous support. People may disagree as to whether the Bay Bridge is more important for its engineering, its role in transportation history or for its importance in the politics of the area. The structure is highly significant in all of these different ways.

Subjects
Civil Engineering
Suspension Bridges
Bridge Construction


Related Names
Purcell, C. H.
Lowe, Jet, Photographer


Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
1. GENERAL VIEW OF CANTILEVER SPAN LOOKING TOWARDS OAKLAND END OF BRIDGE
2. GENERAL VIEW OF SUSPENSION BRIDGE FROM YERBA BUENA ISLAND
3. GENERAL VIEW OF SUSPENSION BRIDGE FROM SAN FRANCISCO
4. GENERAL VIEW OF SUSPENSION BRIDGE FROM YERBA BUENA ISLAND WITH CENTRAL ANCHORAGE IN THE MIDDLE OF PHOTO
5. GENERAL VIEW OF SUSPENSION BRIDGE FROM SAN FRANCISCO, WITH ANCHORAGE IN RIGHT FOREGROUND
6. GENERAL VIEW OF SUSPENSION BRIDGE FROM SAN FRANCISO, WITH APPROACH SPAN AT RIGHT
7. GENERAL VIEW OF SUSPENSION BRIDGE, WITH OAKLAND IN BACKGROUND
8. GENERAL VIEW OF CANTILEVER SPAN FROM YERBA BUENA ISLAND
9. GENERAL ELEVATION VIEW OF CANTILEVER SPAN
10. DETAIL VIEW OF SUSPENSION BRIDGE TOWER AT SAN FRANCISCO END OF BRIDGE
11. GENERAL VIEW LOOKING TOWARDS SAN FRANCISCO FROM TOP OF SECOND TOWER AWAY FROM SAN FRANCISCO SHORELINE
12. GENERAL VIEW LOOKING TOWARDS YERBA BUENA ISLAND FROM TOP OF SECOND TOWER AWAY FROM SAN FRANCISCO SHORELINE
13. DETAIL VIEW OF TOWER LOOKING UP FROM WATER LEVEL
14. DETAIL VIEW OF TOWER SHOWING CROSS BRACING AND RIVETS
15. DETAIL VIEW OF BASE OF TOWER
16. DETAIL VIEW OF BASE OF TOWER WITH SAN FRANCISCO IN BACKGROUND
17. DETAIL VIEW OF CONCRETE FOUNDATION FOR TOWERS
18. DETAIL VIEW LOOKING UP INTERIOR OF TOWER
19. DETAIL VIEW TAKEN ON TOP OF TOWER SHOWING STRUCTURE THAT PROTECTS THE CABLE SADDLE
20. DETAIL VIEW OF CABLE SADDLE AT TOP OF TOWER
21. GENERAL VIEW TAKEN FROM TOP OF TOWER WITH CABLE IN FOREGROUND AND SAN FRANCISCO IN BACKGROUND
22. DETAIL VIEW OF CABLE TAKEN FROM TOP OF TOWER WITH MR. CHARLES GUELATTE ATOP CABLE
23. DETAIL VIEW OF CENTRAL ANCHORAGE WITH TIMBER PILES IN FOREGROUND
24. GENERAL VIEW OF UNDERSIDE OF SUSPENSION BRIDGE WITH SAN FRANCISCO SKYLINE ON RIGHT
25. GENERAL VIEW OF UNDERSIDE OF SUSPENSION BRIDGE WITH U. S. NAVY CARRIER PASSING UNDER THE STRUCTURE
26. DETAIL VIEW OF CENTRAL ANCHORAGE
27. GENERAL VIEW INSIDE CENTRAL ANCHORAGE
28. GENERAL VIEW INSIDE CENTRAL ANCHORAGE WITH BOTTOM FLOOR VISIBLE
29. SAME VIEW AS #28 BUT WITH DIFFERENT LIGHTING
30. DETAIL VIEW OF INTERIOR WALL OF CENTRAL ANCHORAGE
31. DETAIL VIEW SHOWING ELECTRICAL EQUIPMENT INSIDE CENTRAL ANCHORAGE
32. GENERAL VIEW OF CENTRAL ANCHORAGE, LOOKING UP FROM BOTTOM FLOOR
33. GENERAL VIEW OF BOTTOM FLOOR OF CENTRAL ANCHORAGE
34. DETAIL VIEW OF CABLE ELEMENTS INSIDE CENTRAL ANCHORAGE
35. DETAIL VIEW OF CABLE STRANDS INSIDE CENTRAL ANCHORAGE
36. DETAIL VIEW OF WARREN TRUSS APPROACH SPAN AT SAN FRANCISCO END OF SUSPENSION BRIDGE
37. DETAIL VIEW OF TRESTLE SUPPORTS AT SAN FRANCISCO END OF SUSPENSION BRIDGE
38. DETAIL VIEW OF ANCHORAGE AT SAN FRANCISCO END OF SUSPENSION BRIDGE
39. DETAIL VIEW OF CABLES ENTERING ANCHORAGE AT SAN FRANCISCO END OF BRIDGE
40. DETAIL VIEW OF CABLE ELEMENTS IN SAN FRANCISCO ANCHORAGE
41. DETAIL VIEW OF CABLE IN SAN FRANCISCO ANCHORAGE
42. DETAIL VIEW OF CABLE IN SAN FRANCISCO ANCHORAGE
43. DETAIL VIEW SHOWING CABLES WHERE THEY ARE ATTRACTED TO STEEL EYEBARS
44. DETAIL VIEW OF CABLE/EYEBAR CONNECTIONS
45. DETAIL VIEW OF CABLE/EYEBAR CONNECTIONS
46. DETAIL VIEW OF CABLE EYEBAR CONNECTIONS
47. DETAIL ELEVATION VIEW OF CANTILEVER SPAN
48. DETAIL ELEVATION VIEW OF CANTILEVER SPAN
49. DETAIL VIEW OF TRESTLE SUPPORTS FOR THE CANTILEVER BRIDGE APPROACH SPANS
50. GENERAL VIEW OF CANTILEVER APPROACH SPANS
51. GENERAL VIEW OF UNDERSIDE OF CANTILEVER SPAN
52. INTERIOR VIEW OF BRIDGE 'CONTROL ROOM'
53. DETAIL OF CONTROL PANEL


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