Washington Crossing Bridge, Spanning Allegheny River at Fortieth Street (State Route 2124), Pittsburgh, Allegheny County, PA

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

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.

Unprocessed Field note material exists for this structure: N425

Survey number: HAER PA-447

Building/structure dates: 1923- 1924 Initial Construction

National Register of Historic Places NRIS Number: 88000820

steel arch bridges transportation vehicular bridges pittsburgh pa bridge allegheny allegheny river fortieth fortieth street state route pittsburgh allegheny county pennsylvania all steel equipment company allegheny county department of public works carnegie steel company james g chalfant vernon r covell charles stratton davis eric n delony joseph e elliott h p converse company historic american engineering record j h mcquade and sons benno janssen jones and laughlin steel company mcclintic marshall company morganstern electric company pennsylvania department of transportation pennsylvania historical and museum commission david s rotenstein southern wood preserving company thomas cronin company ultra high resolution high resolution drawings infrastructure library of congress national register of historic places

1969 - 1980

Library of Congress

http://www.loc.gov/

No known restrictions on images made by the U.S. Government; images copied from other sources may be restricted. http://www.loc.gov/rr/print/res/114_habs.html