Washington Crossing Bridge, Spanning Allegheny River at Fortieth Street (State, Pittsburgh, Allegheny County, PA

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Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey

11 b&w photos
30 data pages
1 photo caption pages
1 color transparencies

TITLE:
Washington Crossing Bridge, Spanning Allegheny River at Fortieth Street (State, Pittsburgh, Allegheny County, PA

CALL NUMBER:
HAER PA,2-PITBU,26-

REPRODUCTION NUMBER:
[See Call Number]

MEDIUM:
Photo(s): 11 (4 x 5 in.)
Data Page(s): 29 plus cover page
Photo Caption Page(s): 1
Color Transparencies: 1

DATE:
Documentation compiled after 1968.

CREATOR:
Historic American Engineering Record, creator

NOTE:
Survey number HAER PA-447

Unprocessed field note material exists for this structure (N425).

Building/structure dates: 1923 initial construction

See also HABS PA-1179 for additional documentation. Includes drawings.

National Register of Historic Places NRIS Number: 88000820

Significance: The bridge is an outstanding example of a long-span metal deck arch bridge. Its unique architectural details, forged in a successful collaboration between architects and engineers in the design and construction of the bridge, add to its significance. The bridge is also significant because its construction was the culmination of a conflict over Allegheny River bridge heights between the U.S. War Department and local governments.

SUBJECTS:
PENNSYLVANIA--Allegheny County--Pittsburgh
steel arch bridges
transportation
vehicular bridges

OTHER TITLE:
Fortieth Street Bridge
Allegheny River Bridge No. 7

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.pa3565

CONTENTS:
Photograph caption(s):
3/4 VIEW FROM SOUTHWEST.
3/4 VIEW FROM NORTHWEST.
UNDERSIDE FROM NORTH.
UNDERSIDE OF SOUTH APPROACH SPAN.
3/4 VIEW OF NORTH MAIN PIER.
SOUTH APPROACH FROM STREET LEVEL.
NORTH APPROACH FROM STREET LEVEL.
DETAIL OF COLUMNS AT NORTH END.
DETAIL OF PLAQUE AT NORTHWEST CORNER.
DETAIL OF PLAQUE AT NORTHWEST CORNER.
DETAIL OF RAILING SHOWING TYPICAL STATE SEAL.
3/4 VIEW FROM NORTHWEST.

CONTROL #:
PA3565

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