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Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey
 25 b&w photos |  6 data pages |  3 photo caption pages |  2 color transparencies |
How to obtain copies of this item
TITLE:
Umpqua River Bridge, Spanning Umpqua River at Oregon Coast Highway, Reedsport, Klamath County, OR
CALL NUMBER:
HAER ORE,10-REPO,1-
REPRODUCTION NUMBER:
[See Call Number]
MEDIUM:
Photo(s): 25 (4 x 5 and 5 x 7 in.)
Data Page(s): 5 plus cover page
Photo Caption Page(s): 3
Color Transparencies: 2
DATE:
Documentation compiled after 1968.
CREATOR:
Historic American Engineering Record, creator
RELATED NAME(S):
Bennett, transmitter
Young, Kelly E., transmitter
Norman, James, photographer
NOTE:
Survey number HAER OR-45
Unprocessed field note material exists for this structure (FN-28).
Significance: The Umpqua River Bridge is historically significant as one of the five Depression-era PWA bridges that connected the Oregon Coast Highway. The completion of these bridges is considered the dividing line between the period of relative isolation and dependence on sea transportation of Oregon's southern coastal region to its modern era of land transportation and connection with the hinterland. The Umpqua River Bridge is the only one of the five PWA coastal bridges to be constructed with a swing span. It is the longest swing span constructed in Oregon, and one of only a few left in the state. The bridge is also representative of the innovative designs by State Bridge Engineer Conde B. McCullough. McCullough was a pioneer in American concrete bridge design. The Umpqua River Bridge includes early examples of McCullough's use of tied, or bowstring arches, and concrete arches constructed using Considere-type hinges.
SUBJECTS:
OREGON--Klamath County--Reedsport
swing bridges
vehicular bridges
concrete bridges
COLLECTION:
Historic American Engineering Record (Library of Congress)
REPOSITORY:
Library of Congress, Prints and Photograph Division, Washington, D.C. 20540 USA
DIGID:
http://hdl.loc.gov/loc.pnp/hhh.or0311
CONTENTS:
Photograph caption(s):
1. General view from west
2. Concrete arches on south side of swing span
3. View of approach spans from southwest
4. View of approach span, looking southeast
5. North portal, looking south
6. Roadway and concrete arch detail
7. Detail, formwork at south portal
8. Same as OR-45-7
9. Perspective view of swing span from southeast
10. Elevation from east
11. Detail, swing span steelwork from roadway
12. Steelwork, looking north from operator's house
13. Interior view of control room
14. View of turntable and drive motor
15. View of brakes and drive gear
16. South portal of main span, looking north
CONCRETE ARCHES ON SOUTH SIDE OF SWING SPAN
VIEW OF APPROACH SPAN, LOOKING SOUTHEAST
CONTROL #:
OR0311
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