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Philadelphia & Reading Railroad, Susquehanna River Bridge, Spanning Susquehanna River, North of I-83 Bridge, Harrisburg, Dauphin County, PA
Summary
Significance: The structure is significant as a late example of a reinforced concrete arch design by the Philadelphia & Reading Railroad, and perhaps the longest such structure on the former P&R system. Its design, falsework, and construction embody refinements developed during nearly 2 decades of experience with the material. The P&R's bridge also provides an important contrast to a nearby Pennsylvania Railroad bridge, reflecting the differing design philosophies of competing lines.
Unprocessed Field note material exists for this structure: N603
Survey number: HAER PA-523
Building/structure dates: 1889-1891 Initial Construction
Building/structure dates: 1920-1924 Subsequent Work
Tags
Date
1969 - 1980
Contributors
Historic American Engineering Record, creator
Wagner, Samuel T
Baker, Percival S
T. L. Eyre, Incorporated
James McGraw Company
Blaw-Knox Company
Philadelphia & Reading Railroad
Consolidated Rail Corporation (Conrail)
Norfolk Southern Railroad
Nolan Brothers
Philadelphia, Harrisburg & Pittsburgh Railroad
South Pennsylvania Railroad
DeLony, Eric N, project manager
Pennsylvania Historical & Museum Commission, sponsor
Consolidated Rail Corporation (Conrail), sponsor
Spivey, Justin M, historian
Lowe, Jet, photographer
Location
Harrisburg, 40.27319, -76.88670
Source
Library of Congress
Copyright info
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
