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Boyer River Bridge

Map 

Facts 

Overview
Pony truss bridge over Boyer River on 170th Street
Location
Sac County, Iowa
Status
Closed to all traffic
History
Built 1915
Design
Pony truss
Dimensions
Length of largest span: 49.9 ft.
Total length: 53.2 ft.
Deck width: 16.1 ft.
Approximate latitude, longitude
+42.54712, -95.21136   (decimal degrees)
42°32'50" N, 95°12'41" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/318433/4712895 (zone/easting/northing)
Quadrangle map:
Lakeside
Land survey
T. 89 N., R. 37 W., Sec. 9
Inventory numbers
IA 301680 (Iowa bridge number)
BH 14348 (Bridgehunter.com ID)
Inspection (as of 08/2007)
Deck condition rating: Poor (4 out of 9)
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Critical (2 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 20.5 (out of 100)
Average daily traffic (as of 2003)
10

Categories 

Boyer River (34)
Built 1915 (1,132)
Built during 1910s (8,792)
Closed (2,430)
Iowa (5,809)
Owned by county (18,904)
Pony truss (15,068)
Sac County, Iowa (32)
Span length 25-50 feet (13,703)
Structurally deficient (18,538)
Total length 50-75 feet (8,507)
Truss (29,505)

Update Log 

  • February 13, 2012: Updated by Jason Smith: Updated the information on the bridge

Sources 

  • Jason Smith - flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com