Rating:
No votes cast

West Nishnabotna River Bridge

Photos 

Looking Northwest

Photo taken by Daniel Barnes in June 2017

Enlarge

BH Photo #395035

Map 

Facts 

Overview
Pony truss bridge over West Nishnabotna River on 170th Street
Location
Audubon County, Iowa
Status
Closed to all traffic with deck partially removed
History
Built 1948
Builder
- Iowa State Highway Commission of Ames, Iowa
Design
Pony truss
Dimensions
Length of largest span: 59.1 ft.
Total length: 116.1 ft.
Deck width: 16.1 ft.
Approximate latitude, longitude
+41.76067, -95.04275   (decimal degrees)
41°45'38" N, 95°02'34" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/330187/4625220 (zone/easting/northing)
Quadrangle map:
Manning SE
Land survey
T. 80 N., R. 36 W., Sec. 9
Inventory numbers
IA 68740 (Iowa bridge number)
BH 12867 (Bridgehunter.com ID)
Inspection (as of 11/2013)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Imminent Failure (1 out of 9)
Substructure condition rating: Imminent Failure (1 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 23.5 (out of 100)
Average daily traffic (as of 2012)
15

Update Log 

  • June 22, 2017: New photos from Daniel Barnes
  • May 12, 2015: Updated by Kevin Skow: Updated condition based on satellite imagery.
  • April 11, 2010: Updated by J.R. Manning: Updated Road Name

Sources 

  • J.R. Manning - thekitchenguy [at] sbcglobal [dot] net
  • Kevin Skow - weatherbum [at] hotmail [dot] com
  • Daniel Barnes