Rating:
No votes cast

Great Porcupine Creek Bridge

Photos 

Big Porcupine Creek Bridge

View from the southwest

Photo taken by David Jones in November 2016

Enlarge

BH Photo #370111

Map 

Facts 

Overview
Pony truss bridge over Great Porcupine Creek on CR 103
Location
Rosebud County, Montana
Status
Open to traffic
History
Built 1912
Design
Warren pony truss
Dimensions
Length of largest span: 40.0 ft.
Total length: 42.0 ft.
Deck width: 15.1 ft.
Approximate latitude, longitude
+46.58472, -107.09444   (decimal degrees)
46°35'05" N, 107°05'40" W   (degrees°minutes'seconds")
Approximate UTM coordinates
13/339541/5161148 (zone/easting/northing)
Quadrangle map:
Zempel Lake
Inventory number
BH 23166 (Bridgehunter.com ID)
Inspection (as of 09/2014)
Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 36.5 (out of 100)
Average daily traffic (as of 2003)
100

Categories 

Built 1912 (735)
Built during 1910s (8,806)
Montana (752)
One-lane traffic (7,434)
Open (36,896)
Owned by county (18,924)
Pony truss (15,086)
Rosebud County, Montana (18)
Span length 25-50 feet (13,737)
Structurally deficient (18,553)
Total length 25-50 feet (9,934)
Truss (29,553)
Warren pony truss (2,957)
Warren truss (5,826)
Wooden deck (5,873)

Update Log 

  • November 14, 2016: New photos from David Jones

Sources 

  • David Jones - david2jpix [at] yahoo [dot] com