Rating:
1 vote

Bighorn River Bridge

Photos 

Underneath

Photo taken by Matthew Lohry

Enlarge

BH Photo #155374

Map 

Description 

Even if there were nothing else to be impressed with about this bridge, its size alone is jaw-dropping! At nearly 300 feet each, the main spans are very substantial rivet-connected Pennsylvania through-truss spans, complete with original guard rails and more than enough V-lacing to keep even the pickiest bridge enthusiast happy. The bridge also features two concrete t-beam approach spans, one on each end. A Warren through-truss railroad bridge is visible to the north from this bridge. This is the very last highway bridge on the Bighorn, as this river empties into the Yellowstone just north of the railroad bridge.

Facts 

Overview
Pennsylvania through truss bridge over Bighorn River on Frontage Road 104
Location
Yellowstone County, Montana, and Treasure County, Montana
Status
Open to traffic
History
Built 1930
Dimensions
Total length: 630.0 ft.
Recognition
Posted to the National Register of Historic Places on January 4, 2010
Approximate latitude, longitude
+46.14708, -107.46702   (decimal degrees)
46°08'49" N, 107°28'01" W   (degrees°minutes'seconds")
Approximate UTM coordinates
13/309481/5113347 (zone/easting/northing)
Quadrangle map:
Bighorn
Inventory numbers
NRHP 09001188 (National Register of Historic Places reference number)
BH 23206 (Bridgehunter.com ID)
Inspection (as of 04/2015)
Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Fair (5 out of 9)
Sufficiency rating: 62.0 (out of 100)
Average daily traffic (as of 2003)
100

Update Log 

  • February 4, 2014: Updated by Matt Lohry: Corrected approach type--these are concrete t-beam approaches.
  • April 20, 2010: New Street View added by J.P.
  • February 17, 2010: Updated by Matthew Lohry: Updated bridge type, GPS and county locations
  • February 16, 2010: New photos from Matthew Lohry

Sources 

  • Matt Lohry
  • J.P. - wildcatjon2000 [at] gmail [dot] com