Prairie Du Chien, Wisconsin

Marquette-Prairie Bridge (Crawford County, Wisconsin)
Built 1932; Replaced 1974
Lost suspension bridge over Mississippi River on US 18
Replaced by a new bridge

MILW - Pile-Pontoon Bridge (Clayton County, Iowa)
Built 1913; Disassembled 1961
Lost Pontoon bridge over Mississippi River on Chicago, Milwaukee, St. Paul & Pacific Railroad
Removed

MILW - Pile-Pontoon Bridge (Original) (Clayton County, Iowa)
Built 1874; Replaced 1913
Lost Pontoon bridge over Mississippi River on Chicago, Milwaukee, St. Paul & Pacific Railroad
Replaced by a new bridge