Photo taken by Jodi Christman
BH Photo #177754
FROM THE 1996-2001 PENNSYLVANIA HISTORIC BRIDGE SURVEY:
The one-span, 190'-long, pin-connected, Pennsylvania thru truss bridge built in 1895 is composed of built-up sections and eye bars. It is supported on stone abutments with wingwalls. The open steel grid deck and stringers were placed in 1955. Plates have been welded to the verticals above the lower panel points. W-beam guide railings have replaced the earlier railings. The bridge has Z-plate floorbeam hangers, a detail distinctive of the fabricator, the Pittsburgh Bridge Co. It was erected by their agents Nelson & Buchanan of Chambersburg. The Pennsylvania truss design, a variation of the Pratt truss with subdivided panels and polygonal upper chord, was developed in about 1875 by bridge engineers of the Pennsylvania RR. The design was used primarily for long-span railroad applications, but found some popularity for long-span (approx. 200') highway applications from about 1890 to 1910, and it continued to be used in the state through the 1930s, though most later examples are rivet connected. The survey has identified at least four pre-1900 examples of Pennsylvania thru truss highway bridges. This example has alterations but they do not compromise the overall integrity of original design or workmanship. The bridge is historically and technologically significant as an increasingly rare type and design.
- Through truss bridge over Conodoguinet Creek on Wolf Bridge Road (TR 508) in Schlusser
- Cumberland County, Pennsylvania
- Closed to all traffic until its replacement is completed.
- Future prospects
- Slated for demolition and replacement, prelim schedule places demolition between March and May 2020.
- Built 1895; rehabilitated 1955; closed permanently in 2013, to be replaced in 2016
- - Nelson & Buchanan Co. of Chambersburg & Pittsburgh, Pennsylvania
- Pittsburgh Bridge Co. of Pittsburgh, Pennsylvania
- Pennsylvania through truss
Total length: 191.9 ft.
Deck width: 17.4 ft.
Eligible for the National Register of Historic Places
- Approximate latitude, longitude
- +40.24026, -77.16495 (decimal degrees)
40°14'25" N, 77°09'54" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 18/315842/4456672 (zone/easting/northing)
- Quadrangle map:
- Average daily traffic (as of 2015)
- Inventory numbers
- PA 21 7206 0508 3611 (Pennsylvania Bridge Management System number)
PANBI 14077 (Pennsylvania BRKEY bridge number on the 2011 NBI)
BH 30818 (Bridgehunter.com ID)
- Inspection report (as of September 2017)
- Overall condition: Poor
Superstructure condition rating: Imminent Failure (1 out of 9)
Substructure condition rating: Poor (4 out of 9)
Deck condition rating: Critical (2 out of 9)
View more at BridgeReports.com
- November 11, 2019: Updated by Nathan Holth: Updated planned demo based on contract docs.
- August 17, 2017: Updated by Christopher Finigan: Added category "Pin-connected"
- August 17, 2014: New photos from Jodi Christman
- November 19, 2013: New photos from Jodi Christman
- November 12, 2013: Updated by Jason Smith: This bridge is doomed: closed to all traffic until 2016 or if funding is available for replacement earlier
- December 26, 2011: Updated by Jodi Christman: Added builder and description
- November 3, 2011: Updated by Nathan Holth: This bridge's future is now uncertain. May be at risk for demolition.
- June 11, 2011: Updated by Luke Harden: Bridge reopened
- May 9, 2011: New Street View added by Daniel Hopkins
- March 7, 2011: Updated by Daniel Hopkins: Corrected GPS
- September 17, 2010: New photos from Jodi Christman
- June 15, 2010: Updated by Nathan Holth: Bridge has been damaged and closed.
- K. A. Erickson
- Nathan Holth
- Jodi Christman - masterofchaos [at] outlook [dot] com
- Daniel Hopkins - chimera [at] clovermail [dot] net
- Historicbridges.org - by Nathan Holth
- Jason Smith - flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com