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Weirmans Mill Road Bridge

Photos 

Wiermans Mill Road Bridge

Google Maps

BH Photo #222411

Map 

Description 

FROM THE 1996-2001 PENNSYLVANIA HISTORIC BRIDGE SURVEY: The 1 span, 93'-long, pin-connected, Pratt thru truss bridge built in 1896 is supported on stone abutments. It is composed of standard built-up section members and eye bars and has Z-shaped plate floorbeam hangers (a distinctive Pittsburgh Bridge Co. detail) and lattice portals. The timber deck was replaced by an open steel grid deck in 1960. W-beam guiderail railings have replaced earlier railings. Fabricated by the Pittsburgh Bridge Company and erected by Nelson & Buchanan of Chambersburg, the bridge is a complete example of the pin-connected Pratt truss bridge type and design that dominated highway bridge building in the late 19th century. Pin-connected truss bridges were once common in the region, but they are increasingly rare with four examples from 1889 to 1896 identified in Adams County. Of the four remaining pin-connected truss bridges, this is the only Pratt thru truss, and it was built by a noteworthy builder in the region. It is historically and technologically significant.

Facts 

Overview
Through truss bridge over Bermudian Creek on PA 1009
Location
Adams County, Pennsylvania
Status
Demolished by PennDOT and replaced with a slab of concrete.
History
Built 1896 by the Pittsburgh Bridge Co. & Nelson & Buchanan
Builders
- Nelson & Buchanan Co. of Chambersburg & Pittsburgh, Pennsylvania
- Pittsburgh Bridge Co. of Pittsburgh, Pennsylvania
Design
Pratt through truss
Dimensions
Span length: 92.9 ft.
Total length: 92.9 ft.
Deck width: 13.7 ft.
Recognition
Eligible for the National Register of Historic Places
Approximate latitude, longitude
+39.97260, -77.11763   (decimal degrees)
39°58'21" N, 77°07'03" W   (degrees°minutes'seconds")
Approximate UTM coordinates
18/319160/4426863 (zone/easting/northing)
Quadrangle map:
Hampton
Average daily traffic (as of 2017)
284
Inventory numbers
PA 01 1009 0050 0496 (Pennsylvania Bridge Management System number)
PANBI 46788 (Pennsylvania BRKEY bridge number on the 2011 NBI)
BH 30208 (Bridgehunter.com ID)
Inspection report (as of June 2017)
Overall condition: Fair
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 97.8 (out of 100)
View more at BridgeReports.com

Update Log 

  • December 26, 2011: Updated by Jodi Christman: Added description note
  • July 18, 2011: Updated by Nathan Holth: This bridge has been demolished and replaced by PennDOT.

Sources