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Whitebird Creek Bridge

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Whitebird Creek Bridge

Photo taken by Karl Sweitzer

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Facts 

Overview
Pony truss bridge over Whitebird Creek on STC 4707
Location
Idaho County, Idaho
Status
Open to traffic
History
Built 1922
Design
Riveted Warren pony truss
Dimensions
Length of largest span: 60.0 ft.
Total length: 63.0 ft.
Deck width: 17.1 ft.
Approximate latitude, longitude
+45.75778, -116.30944   (decimal degrees)
45°45'28" N, 116°18'34" W   (degrees°minutes'seconds")
Approximate UTM coordinates
11/553704/5067367 (zone/easting/northing)
USGS topographic map
White Bird
Inventory numbers
ID 29405 (Idaho bridge number)
BH 14906 (Bridgehunter.com ID)
Inspection (as of 07/2011)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Good (7 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 33.0 (out of 100)
Average daily traffic (as of 2010)
220

Categories 

Built 1922 (464)
Built during 1920s (7,033)
Idaho (233)
Idaho County, Idaho (18)
One-lane traffic (7,111)
Open (28,310)
Pony truss (13,217)
Span length 50-75 feet (6,996)
Structurally deficient (16,677)
Total length 50-75 feet (6,896)
Truss (23,568)
Warren pony truss (1,987)
Warren truss (3,958)

Update Log 

  • July 12, 2009: Updated by Karl Sweitzer: Corrected design

Sources 

  • Karl Sweitzer - kesc [at] pacbell [dot] net