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() I will add just a little bit of additional Info now.
Timetable Schedule Prior to Jan 5th 1960.
Boscobel, Wisconsin was my Father's Home Town.
Rules for the Operation and use of the Pontoon Bridge
This route had a Pontoon Bridge Linking Prarie du Chien, Wisconsin and McGregor/Marquette, Iowa.
Only 3 Pontoon Bridges were ever Built.
Prarie du Chien/McGregor, Marquette, Iowa Across the Mississippi river
Reids Landing, Minn. Built 1882 Abandoned 1951
Across Missouri River, Chamberlain, SD
Using a pile full of work the Height of the Bridge deck was maintained 17 inches above the static Deck Height of the Bridge. So that the weight of the Train would Level the floating Bridge deck with the Static Bridge Deck of the Approach's
Pontoon Bridge/ High Water April 1951
With the Abandonment of Passenger service Jan. 5th 1961 the Pontoon Bridge was no longer needed.
The Last train to use the Pontoon Bridge at McGregor/Prarie du Chein was operated on Oct 31st 1961
Paul Hegge
NOT a Political Entry 
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