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Starrucca Viaduct
A 1920 picture of the Starrucca Viaduct.
Coordinates	41°57′46″N 75°35′00″W / 41.962790°N 75.583446°W / 41.962790; -75.583446
Carries	Two tracks of the New York, Susquehanna and Western Railway
Crosses	Starrucca Creek
Locale	Lanesboro, Pennsylvania
Maintained by	New York, Susquehanna and Western Railway
Characteristics
Design	Stone arch bridge
Total length	1,040 feet (320 m)
Width	Two tracks
Longest span	Seventeen spans of 50 feet (15 m)
Clearance below	100 feet (30 m)
History
Opened	1848
Location

Starrucca Viaduct is a stone arch bridge that spans Starrucca Creek near Lanesboro, Pennsylvania, in the United States. Built at a cost of $320,000 (equal to $11,268,923 today), it was at the time of its construction thought to be the most expensive railway bridge in the world. It was the largest stone rail viaduct in the mid-19th century and is still in use.

Construction

The viaduct was designed by Julius W. Adams and James P. Kirkwood and built in 1847-48 by New York and Erie Railroad, of locally quarried random ashlar bluestone, except for three brick interior longitudinal spandrel walls and the concrete base of the piers. This may have been the first structural use of concrete in American bridge construction.

It was built to solve an engineering problem posed by the wide valley of Starrucca Creek. The railroad considered building an embankment, but abandoned the idea because it was impractical. The Erie Railroad was well-financed by British investors, but even with money available, most American contractors at the time were incapable of the task. Julius W. Adams, the superintending engineer of construction in the area, hired James P. Kirkwood, a civil engineer who had worked on the Long Island Rail Road. Accounts differ as to whether Kirkwood worked on the bridge himself, or whether Adams was responsible for the plans with Kirkwood working as a subordinate. The lead stonemason, Thomas Heavey, an Irish immigrant from County Offaly, had worked on other projects for Kirkwood, primarily in New England. It took 800 workers, each paid about $1 per day, equal to $35.22 today, to complete the bridge in a year. The falsework for the bridge required more than half a million feet of cored and hewn timbers.

The original single broad gauge track was replaced by two standard gauge tracks in 1886. The roadbed deck under the tracks was reinforced with a layer of concrete in 1958.

The bridge has been in continual use for more than a century and a half, and is still in use by the Norfolk Southern Railway. In 2005 Norfolk Southern leased the portion of the line from Port Jervis, New York to Binghamton, New York to the Delaware Otsego Corporation, which operates it under the name Central New York Railway. The only railroad currently using it is DO's New York, Susquehanna and Western Railway.

The viaduct is listed on the National Register of Historic Places and is a Historic Civil Engineering Landmark.

• Starruca Viaduct, Pennsylvania, 1865, by Jasper Francis Cropsey
• October 2009
• October 2014

See also

• List of bridges documented by the Historic American Engineering Record in Pennsylvania
• List of Erie Railroad structures documented by the Historic American Engineering Record
• List of Pennsylvania state historical markers in Susquehanna County

References

1. "HAER survey drawings (sheet 1 of 3)". "HAER survey drawings (sheet 2 of 3)". "HAER survey drawings (sheet 3 of 3)". US Library of Congress. Retrieved 29 January 2016.

• Historic American Engineering Record (HAER) No. PA-6, "Erie Railway, Delaware Division, Bridge 189.46"
• Starrucca Viaduct at Structurae. Retrieved 2006-06-16.
• Plowden, David (2002). Bridges: The Spans of North America. New York: W. W. Norton. ISBN 9780393050561.
• American Society of Civil Engineers, Reston, VA. "Starrucca Viaduct." Historic Civil Engineering Landmarks. Accessed 2013-10-04.
• "Erie has Largest Stone Bridge" (PDF). Erie Railroad Magazine: 11. August 1939. Retrieved 2011-10-13.
• Brown, Jeff L. (January 2014). "Rock Solid: Stone Arch Bridges of the 1840s". Civil Engineering. Reston, VA: American Society of Civil Engineers: 44–47. ISSN 0885-7024.

External links

• Susquehanna County (Pa), Bridges to the Future
• , ASCE Engineering Projects

v t e US National Register of Historic Places in Pennsylvania
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Category NRHP portal

• Bridges completed in 1848
• Railroad bridges on the National Register of Historic Places in Pennsylvania
• Historic Civil Engineering Landmarks
• Railroad bridges in Pennsylvania
• Viaducts in the United States
• Bridges in Susquehanna County, Pennsylvania
• Historic American Engineering Record in Pennsylvania
• Erie Railroad bridges
• National Register of Historic Places in Susquehanna County, Pennsylvania
• Stone arch bridges in the United States