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Flat Creek Bridge

Lewis and Clark County, Montana

Photos 

Flat Creek Bridge - Birdtail Road

Southwest portal

Photo taken by David Jones in March 2017

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BH Photo #383222

Map 

Facts 

Overview
Pony truss bridge over Flat Creek on CR 320
Location
Lewis and Clark County, Montana
Status
Open to traffic
History
Built 1901
Builder
- King Bridge Co. of Cleveland, Ohio
Design
Pin-connected, 4-panel Pratt pony truss
Dimensions
Length of largest span: 59.1 ft.
Total length: 61.0 ft.
Deck width: 15.7 ft.
Approximate latitude, longitude
+47.25278, -112.06333   (decimal degrees)
47°15'10" N, 112°03'48" W   (degrees°minutes'seconds")
Approximate UTM coordinates
12/419541/5233803 (zone/easting/northing)
Quadrangle map:
Henry Creek
Average daily traffic (as of 2002)
100
Inventory number
BH 23075 (Bridgehunter.com ID)
Inspection report (as of November 2017)
Overall condition: Fair
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 26 (out of 100)
View more at BridgeReports.com

Categories 

4-panel truss (268)
Built 1901 (509)
Built during 1900s (6,792)
King Bridge Co. (326)
Lewis and Clark County, Montana (34)
Montana (720)
One-lane traffic (7,535)
Open (38,211)
Owned by county (20,051)
 Pin-connected (3,697)
Pony truss (15,694)
Pratt pony truss (3,476)
Pratt truss (8,739)
Span length 50-75 feet (9,601)
Structurally deficient (15,853)
Total length 50-75 feet (8,974)
Truss (31,224)
Wooden deck (6,003)

Update Log 

  • August 11, 2017: Updated by Christopher Finigan: Added category "Pin-connected"
  • March 15, 2017: New photos from David Jones

Sources 

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

Flat Creek Bridge
Posted March 15, 2017, by David Jones (david2jpix [at] yahoo [dot] com)

Builder's Plaque says this bridge was built by the King Bridge Co of Cleveland Ohio.