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Oregon City

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Willamette River Bridge, Spanning Willamette River on Oswego Highway 3, Oregon City, Clackamas County, OR



B&W Photos

HB996787

HB996788

HB996789

HB996790

HB996791


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Item Title


Location
Spanning Willamette River on Oswego Highway 3, Oregon City, OR

Find maps of Oregon City, OR


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER OR-31
Unprocessed field note material exists for this structure (FN-15; N873).
Building/structure dates: 1999
Significance: The Willamette River Bridge (commonly called the Oregon City Arch Bridge) is 745' long with a 360-foot steel through arch of box-girder construction, encased in gunite. The gunite encasement was necessary to prevent corrosion from sulphur dioxide fumes from the paper mills south of the bridge. This is the only gunite-covered bridge in Oregon. The 1921-1922 Biennial Report of the Oregon State Highway Commission praised this bridge as being "the most artistic appearing large bridge in the State."

Subjects
Steel Arch Bridges
Vehicular Bridges


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


Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
1. General view from southeast overlook
2. Perspective view from southwest
3. Perspective view from south
4. Profile from north
5. Detail, fromwork near roadway from midspan
PERSPECTIVE VIEW FROM SOUTHEAST OVERLOOK.


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