Rating:
1 vote

UP - Linn Creek Bridge #1

Photos 

Looking East

Photo taken by Daniel Barnes in April 2017

Enlarge

BH Photo #387807

Map 

Facts 

Overview
Pony/through plate girder bridge over Linn Creek on Union Pacific Railroad
Location
Marshall County, Iowa
Status
Open to traffic
Builder
- Wisconsin Bridge & Iron Co. of Milwaukee, Wisconsin (Rehabilitation)
Railroads
- Chicago & North Western Railway (CNW)
- Union Pacific Railroad (UP)
Design
Pony plate girder
Dimensions
Length of largest span: 60.0 ft.
Total length: 120.0 ft.
Also called
C&NW Bridge #486
Approximate latitude, longitude
+42.03143, -93.07893   (decimal degrees)
42°01'53" N, 93°04'44" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/493466/4653269 (zone/easting/northing)
Quadrangle map:
LaMoille
Inventory number
BH 76684 (Bridgehunter.com ID)

Update Log 

  • May 1, 2018: New photos from John Marvig
  • April 21, 2017: Added by Daniel Barnes

Sources 

  • Daniel Barnes
  • John Marvig - marvigj27 [at] gmail [dot] com

Comments 

UP - Linn Creek Bridge #1
Posted May 1, 2018, by Nathan Holth (webmaster [at] historicbridges [dot] org)

Wow! A ceramic builder plaque! Great Find! I normally only ever see those in Canada (not sure why several builders in Canada used them), where they are extremely rare. Even more rare in the states.

UP - Linn Creek Bridge #1
Posted May 1, 2018, by John Marvig (marvigj27 [at] gmail [dot] com)

I've seen a couple of spans along this line with the same Wisconsin Bridge & Iron Company tag as Daniel found in photo 12, most notably one in adjacent Story County:

http://bridgehunter.com/ia/story/bh49288/

I've speculated before that they likely did a rehabilitation within the last 50 years, and left the tag. It seems to me that if they actually built the structure, they would have left a plaque instead. The Ames bridge has a Lassig Bridge & Iron Works plaque, the true builder of at least that span. I would suspect this span dates to a similar time frame, when the route was double tracked. According to a Union Pacific chart, this route was double tracked at this location between 1901 and 1902.