Bridgehunter.com | West Nishnabotna River Bridge

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Overview: Pony truss bridge over West Nishnabotna River on 170th Street
Location: Audubon County, Iowa
Status: Closed to all traffic
History: Built 1948
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)
Land survey: T. 80 N., R. 36 W., Sec. 9
USGS topographic map: Manning SE
Inventory numbers: IA 68740 (Iowa bridge number)
BH 12867 (Bridgehunter.com ID)
Inspection (as of 12/2007): Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Serious (3 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 23.5 (out of 100)
Average daily traffic (as of 2004): 15