File:Detail view of stairwell at SE Harrison Street - Union Avenue Viaduct, Spanning between Southeast Harrison and Southeast Ivon Streets on Union Avenue (Old Highway 99 East), Portland, HAER OR-132-25.tif

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Summary[edit]

Detail view of stairwell at SE Harrison Street - Union Avenue Viaduct, Spanning between Southeast Harrison and Southeast Ivon Streets on Union Avenue (Old Highway 99 East), Portland, Multnomah County, OR
Photographer

Norman, James

Related names:

Hoffman Construction Company, builder
Louter, David, transmitter
Title
Detail view of stairwell at SE Harrison Street - Union Avenue Viaduct, Spanning between Southeast Harrison and Southeast Ivon Streets on Union Avenue (Old Highway 99 East), Portland, Multnomah County, OR
Depicted place Oregon; Multnomah County; Portland
Date 1999
date QS:P571,+1999-00-00T00:00:00Z/9
Dimensions 4 x 5 in.
Current location
Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print
Accession number
HAER OR-132-25
Credit line
This file comes from the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER) or Historic American Landscapes Survey (HALS). These are programs of the National Park Service established for the purpose of documenting historic places. Records consist of measured drawings, archival photographs, and written reports.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Notes
  • Significance: Completed in 1937, the Union Avenue Viaduct is the longest continuous concrete slab/beam/girder-type structure in the state of Oregon. The original structure was built in 1936-37 and refined with a subordinate couplet addition finished in 1965. The original portion of the viaduct, 1,639 feet long, 60'-6" wide and 881 linear feet of filled roadway approaches between concrete retaining walls, is essentially intact and dominates the smaller and less classically detailed 1,008-foot Grand Avenue couplet. Original luminaries, stairwells and railings remain on the 1937 structure, as does the sidewalk on the west exposure. A prominent decorative feature of the viaduct is its precast concrete Tudor drop arch railing. The viaduct effectively facilitated traffic along Union Avenue, the longest north-south connector in the city of Portland. Motorists experienced substantially improved access to and from the city's Willamette River bridges and the Interstate Bridge on the Columbia. Beyond Portland the structure at one proved an indispensable link in the newly designated eastside Highway 99E connection between Portland and its suburbs. Constructed in the vicinity of an existing railroad and streetcar transportation corridor, the viaduct provided an efficient connection between the commercial area of Union Avenue to the north and the semi-industrial area to the south by eliminating at-grade crossings.
  • Survey number: HAER OR-132
  • Building/structure dates: 1936-1937 Initial Construction
Source https://www.loc.gov/pictures/item/or0512.photos.224818p
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.
Object location45° 31′ 25″ N, 122° 40′ 30″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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