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CN - Boyer River Bridge #4

Crawford County, Iowa

Photos 

CN Boyer River Bridge #4

Looking North

Photo taken by John Marvig in December 2018

Enlarge

BH Photo #441543

Map 

Description 

Originally built with a deck girder main span, which was replaced in 1961 with a through girder. West approach also replaced 1961.

Facts 

Overview
Pony/through plate girder bridge over Boyer River on Canadian National Railway
Location
Crawford County, Iowa
Status
Open to traffic
History
Built 1899, Rebuilt 1961
Railroads
- Canadian National Railway (CN)
- Chicago, Central & Pacific Railroad (CC)
- Illinois Central Railroad (IC; ICG (1972-1988))
Design
Pony plate girder
Dimensions
Length of largest span: 77.0 ft.
Total length: 149.0 ft.
Approximate latitude, longitude
+42.08580, -95.32671   (decimal degrees)
42°05'09" N, 95°19'36" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/307561/4661922 (zone/easting/northing)
Inventory number
BH 83969 (Bridgehunter.com ID)

Categories 

19th Century (8,367)
Beam (16,881)
Boyer River (36)
Built 1899 (430)
Built during 1890s (3,192)
Canadian National Railway (571)
Chicago, Central & Pacific Railroad (95)
Crawford County, Iowa (98)
Deck girder (6,303)
Girder (11,169)
 Illinois Central Railroad (625)
Iowa (6,793)
Open (40,968)
Owned by railroad (13,498)
Plate girder (8,724)
Railroad (16,456)
Span length 75-100 feet (6,651)
Steel stringer (6,712)
Through girder (4,189)
Total length 125-175 feet (6,185)

Update Log 

  • January 6, 2019: New photos from John Marvig
  • January 1, 2019: Added by John Marvig

Sources 

Comments 

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