2 votes

North Fork Crazy Woman Creek Bridge


Along Middle Fork Road Toward North Fork Of The Crazy Woman Creek Bridge, View To West

Photo taken by Richard Collier for the Historic American Engineering Record

View photos at Library of Congress

BH Photo #240166



This is the oldest datable vehicular truss bridge in use in the county road system in Wyoming. It displays an interesting variation of the classic Double Intersection Warren pony truss configuration using vertical posts at alternating panel points, making it one of the most significant truss bridges in Wyoming. It retains its essential character-defining features and is also an uncommon example nationally.

-- Historic American Engineering Record


Lost Pony truss bridge over North Fork Crazy Woman Creek on CN16-265
Johnson County, Wyoming
Replaced by a new bridge
Built 1880; Relocated 1964; rehabilitated 1986; replaced 2006
- Detroit Bridge & Iron Works of Detroit, Michigan
Double-intersection Warren pony truss
Length of largest span: 48.9 ft.
Total length: 49.9 ft.
Deck width: 15.1 ft.
Approximate latitude, longitude
+44.08500, -106.67167   (decimal degrees)
44°05'06" N, 106°40'18" W   (degrees°minutes'seconds")
Approximate UTM coordinates
13/366166/4882672 (zone/easting/northing)
Quadrangle map:
Purdy Reservoir
Inventory numbers
WY FHP (Wyoming bridge identifier)
BH 35778 (Bridgehunter.com ID)

Update Log 

  • November 14, 2017: Updated by Dave King: Bridge has been replaced
  • August 12, 2013: Updated by Luke Harden: Added category "Detroit Bridge & Iron Co."
  • September 26, 2012: Updated by James McCray: Updated various aspects of bridge info to reflect HABS info


  • HAER WY-93 - North Fork of Crazy Woman Creek Bridge, Spanning North Fork of Crazy Woman Creek at Middle Fork Road, Buffalo, Johnson County, WY
  • James McCray - jamesinslocomb [at] yahoo [dot] com
  • Dave King - DKinghawkfan [at] hotmail [dot] com