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Florence

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Siuslaw River Bridge, Spanning Siuslaw River at Oregon Coast Highway, Florence, Lane County, OR



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Item Title


Location
Spanning Siuslaw River at Oregon Coast Highway, Florence, OR

Find maps of Florence, OR


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER OR-58
Unprocessed field note material exists for this structure (FN-31).
Significance: The Siuslaw River Bridge is historically significant as one of five Depression-era bridges that completed the Oregon Coast Highway. For Oregon's southern coastal region, the completion of these bridges is considered the dividing line between a period of relative isolation and dependence on sea transportation, and its modern era of land transportation and connection with the hinterland. The Siuslaw River Bridge is the only one of the five PWA coastal bridges with a bascule span. The bridge is also representative of the innovative designs by State Bridge Engineer Conde B. McCullough, a pioneer in American concrete bridge design. The Siuslaw River Bridge is an early example of McCullough's use of tied arches and Considere-type hinges.

Subjects
Bridges
Bascule Bridges
Vehicular Bridges


Related Names
Norman, James, Photographer
Schwab, Leslie, Photographer


Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
1. Oblique view from Lotus Seafood Restaurant
2. Perspective view from northwest
3. Oblique view from northeast
4. South portal, looking north
5. Art Deco column detail on south portal, looking east
6. South portal of arch span, looking north
7. South portal of north concrete arch
8. Control panel, north and south leaves
9. Out-of-service circuit breakers
10. Bull gear and trunion
11. Engine room, reduction gears and relays below roadway between counterweights
12. Photo copy of photograph (location of original print unknown) c.1936, photographer unknown Historic view from roadway
OBLIQUE VIEW FROM LOTUS SEAFOOD RESTAURANT
PERSPECTIVE VIEW FROM NORTHWEST


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