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MILW - Pile-Pontoon Bridge (Prairie du Chein)

Map 

Description 

Originally built 1898 on this alignment when the older alignment was discontinued.

Facts 

Overview
Lost Pontoon bridge over Mississippi River on Chicago, Milwaukee, St. Paul & Pacific Railroad
Location
Prairie du Chein, Crawford County, Wisconsin
Status
Removed but not replaced
History
Built 1898 and upgraded several times; Removed 1961
Railroad
- Chicago, Milwaukee, St. Paul & Pacific Railroad (MILW)
Design
62 Span Pile Trestle
1-36' Deck Girder (1898)
1-60' Deck Girder
1-209' Pontoon Span
1-60' Deck Girder
1-161' Pratt Through Truss
1-36' Deck Girder
61 Span Pile Trestle
Dimensions
Length of largest span: 209.0 ft.
Also called
MILW Bridge #B-378
Approximate latitude, longitude
+43.04532, -91.15843   (decimal degrees)
43°02'43" N, 91°09'30" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/649994/4767493 (zone/easting/northing)
Inventory number
BH 94584 (Bridgehunter.com ID)

Update Log 

  • October 5, 2021: Added by John Marvig

Sources 

Comments 

MILW - Pile-Pontoon Bridge (Prairie du Chein)
Posted October 5, 2021, by John Marvig (marvigj27 [at] gmail [dot] com)

Upon reviewing track charts for this line, it is apparent that there were actually TWO pontoon bridges at this crossing. This bridge used a 209' span, while the Marquette span approximately 1/2 mile west used a larger 270' pontoon span.

Both of these bridges also seem to be an absolute mish-mash of random spans, some of which possibly found their way onto other lines when the bridges were removed.