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Troy Bridge


Troy Bridge

Photo taken by Michael Goff in September 2011


Order print from Imagekind.com

BH Photo #215219



Pennsylvania through truss bridge over Grande Ronde River on Redmond Grade Road
Troy, Wallowa County, Oregon
Open to pedestrians
Built 1910
- Columbia Bridge Co. of Walla Walla, Washington (Fabricator & Builder)
The Troy Bridge is a three span pin connected through truss structure consisting of a single 175-foot Pennsylvania-Petit through truss main span. The northern approach is a short girder/stringer span leading to the main truss, while the southern approach is a 60-foot riveted Warren pony truss.
The Troy Bridge features many of the standard features found on bridges built around the turn of the 20th century. These features include, riveted built up members, “A-frame” portal bracing, and builder plaques at each portal. The portal builder plaques indicate that the Troy Bridge was built in 1910 by the Columbia Bridge Company of Walla Walla, Washington.
The bridge was closed to vehicle traffic in the years following the turn of the 21st century and continues to serve the community of Troy as a pedestrian bridge between the town and the local school.
Length of largest span: 175.9 ft.
Total length: 268.1 ft.
Deck width: 15.1 ft.
Posted to the National Register of Historic Places
Also called
Grande Ronde River Bridge
Approximate latitude, longitude
+45.94538, -117.45066   (decimal degrees)
45°56'43" N, 117°27'02" W   (degrees°minutes'seconds")
Approximate UTM coordinates
11/465070/5088078 (zone/easting/northing)
Quadrangle map:
Inventory numbers
ORNBI 32C62 558 01515 (Oregon bridge number on the National Bridge Inventory)
BH 48397 (Bridgehunter.com ID)

Update Log 

  • April 8, 2018: New photos from Richard Doody
  • September 28, 2011: New photo from Michael Goff
  • September 27, 2011: New photos from Michael Goff
  • March 9, 2011: Added by Michael Goff

Related Bridges 


  • Mike Goff - michael [dot] goff [at] hotmail [dot] com
  • Historic Highway Bridges of Oregon - Dwight A. Smith, James B. Norman & Pieter T. Dykman, Oregon Historical Society Press, 1989
  • Richard Doody