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B Avenue Overpass

Photos 

The west face

This bridge is a typical pony truss built by the Chicago & Northwestern Railway in Iowa in the early part of the 20th Century. (The C&NW was absorbed by the Union Pacific in 1995.)

Photo taken by J.R. Manning in July 2007

BH Photo #109897

Map 

Facts 

Overview
Pony truss bridge over UPRR on B Avenue
Location
Tama County, Iowa
Status
Open to traffic
History
Built ca. 1920
Design
Riveted double-intersection Warren pony truss
Dimensions
Length of largest span: 79.1 ft.
Total length: 136.2 ft.
Deck width: 18.0 ft.
Approximate latitude, longitude
+41.99101, -92.74626   (decimal degrees)
41°59'28" N, 92°44'47" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/521017/4648808 (zone/easting/northing)
Quadrangle map:
Montour
Land survey
T. 83 N., R. 16 W., Sec. 20
Average daily traffic (as of 2001)
25
Inventory numbers
IA 318380 (Iowa bridge number)
BH 14492 (Bridgehunter.com ID)
Inspection report (as of September 2008)
Overall condition: Poor
Superstructure condition rating: Poor (4 out of 9)
Substructure condition rating: Poor (4 out of 9)
Deck condition rating: Poor (4 out of 9)
Sufficiency rating: 31 (out of 100)
View more at BridgeReports.com

Update Log 

  • January 26, 2008: New photo from J.R. Manning

Sources 

  • J.R. Manning - thekitchenguy [at] sbcglobal [dot] net