Bridgehunter.com | 55th Avenue Bridge

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Photo taken by Jason Smith in August 2011

Overview: Riveted Camelback Pratt through truss bridge over Middle River on 55th Avenue
Location: Warren County, Iowa
Status: Open to traffic
History: Built ca. 1950
Design: Riveted Camelback through truss with WV portal bracing
Dimensions: Length of largest span: 157.2 ft.
Total length: 244.1 ft.
Deck width: 18.7 ft.
Vertical clearance above deck: 13.0 ft.
Also called: Middle River Bridge
Approximate latitude, longitude: +41.38124, -93.70381 (decimal degrees)
41°22'52" N, 93°42'14" W (degrees°minutes'seconds")
Approximate UTM coordinates: 15/441150/4581318 (zone/easting/northing)
Land survey: T. 76 N., R. 25 W., Sec. 14
USGS topographic map: Norwalk
Inventory numbers: IA 334730 (Iowa bridge number)
BH 14632 (Bridgehunter.com ID)
Inspection (as of 10/2010): Deck condition rating: Serious (3 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Poor (4 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 29.9 (out of 100)
Average daily traffic (as of 2004): 70