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L Avenue Bridge

Photos 

Oblique view

From the northeast.

Photo taken by J.R. Manning

BH Photo #109481

Map 

Description 

Bridge is likely a relocated Chicago & North Western Railway pony truss, converted for road use. Details underneath this seem to indicate this.

Facts 

Overview
Pony truss bridge over Union Pacific Railroad on L Avenue
Location
Boone County, Iowa
Status
Open to traffic
History
Built 1900
Railroads
- Chicago & North Western Railway (CNW)
- Union Pacific Railroad (UP)
Design
Riveted double-intersection Warren pony truss
Dimensions
Length of largest span: 46.9 ft.
Total length: 129.9 ft.
Deck width: 17.7 ft.
Approximate latitude, longitude
+42.06127, -93.95077   (decimal degrees)
42°03'41" N, 93°57'03" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/421334/4657016 (zone/easting/northing)
Quadrangle map:
Boone West
Land survey
T. 84 N., R. 27 W., Sec. 26
Average daily traffic (as of 2003)
25
Inventory numers
IA 77840 (Iowa bridge number)
BH 12907 (Bridgehunter.com ID)
Inspection report (as of May 2009)
Overall condition: Poor
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Serious (3 out of 9)
Deck condition rating: Poor (4 out of 9)
Sufficiency rating: 25.7 (out of 100)
View more at BridgeReports.com

Update Log 

  • October 11, 2016: New photos from John Marvig
  • February 19, 2010: Updated by J.R. Manning: Updated Location
  • March 29, 2008: New photo from J.R. Manning

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Sources