Rating:
2 votes

RI - East Nishnabotna River Bridge

Pottawattamie County, Iowa

Photos 

Avoca Rail Bridge

Looking North

Photo taken by John Marvig in October 2015

Enlarge

BH Photo #340389

Map 

Facts 

Overview
Quadrangular lattice through truss bridge over East Nishnabotna River on Chicago, Rock Island & Pacific Railroad
Location
Pottawattamie County, Iowa
Status
Derelict/abandoned
History
Built Ca. 1880
Railroad
- Chicago, Rock Island & Pacific Railroad (CRIP (1866-1920); RI (1920-1975) ROCK (1975-1980))
Design
Quadrangular lattice through truss
Dimensions
Length of largest span: 110.0 ft.
Total length: 252.0 ft.
Deck width: 16.1 ft.
Vertical clearance above deck: 14.0 ft.
Approximate latitude, longitude
+41.44654, -95.35179   (decimal degrees)
41°26'48" N, 95°21'06" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/303544/4590998 (zone/easting/northing)
Quadrangle map:
Avoca
Land survey
T. 77 N., R. 39 W., Sec. 21
Inventory numbers
IA 289680 (Iowa bridge number)
BH 14274 (Bridgehunter.com ID)

Categories 

Abandoned (3,360)
Beam (14,499)
Chicago, Rock Island & Pacific Railroad (1,024)
Iowa (6,220)
Lattice through truss (490)
Lattice truss (523)
Nishnabotna River (72)
Owned by county (20,114)
Pedimented portal bracing (58)
Pin-connected (3,704)
 Pottawattamie County, Iowa (141)
Quadrangular lattice through truss (170)
Railroad (14,424)
Riveted (2,054)
Span length 100-125 feet (4,241)
Through truss (14,117)
Timber stringer (3,722)
Total length 250-500 feet (4,910)
Truss (31,322)

Update Log 

  • October 21, 2015: Updated by John Marvig: Added information
  • April 21, 2013: Updated by John Marvig: Added information
  • October 3, 2012: Updated by Luke Harden: Updated bridge type
  • October 3, 2012: Updated by Matt Lohry: Updated info--this appears to be a former railroad bridge
  • January 26, 2012: Updated by Jason Smith: Readjusted the GPS coordinates on this bridge. Bridge is abandoned.

Sources 

  • Jason Smith - flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com
  • Matt Lohry
  • Luke
  • John Marvig - marvigj27 [at] gmail [dot] com
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Comments 

East Nishnabotna River Bridge
Posted October 3, 2012, by Matt Lohry

This appears to be a former rail bridge--the alignment to the south from the bridge leads to the town of Hancock where some of the track still exists. Also, looking at the satellite view, the bridge appears to be a lattice truss with very heavy members and has ties for the deck, typical mainly of railroad bridges.