3 votes

Marquette-Joliet Bridge


1974 Steel Arch Bridge

As seen from the Iowa landing of the old 1932 suspension bridge.

Photo taken by Quinn Phelan in October 2010


BH Photo #183807

Street Views 


Steel through arch bridge over Mississippi River on US 18 between Marquette and Prairie du Chien
Marquette, Clayton County, Iowa, and Crawford County, Wisconsin
Open to traffic
Built 1974
Steel through arch
Length of largest span: 462.3 ft.
Total length: 2,561.8 ft. (0.5 mi.)
Deck width: 40.0 ft.
Vertical clearance above deck: 23.3 ft.
Also called
Prairie Bridge
Approximate latitude, longitude
+43.04396, -91.17540   (decimal degrees)
43°02'38" N, 91°10'31" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/648615/4767312 (zone/easting/northing)
Quadrangle map:
Prairie du Chien
Average daily traffic (as of 2018)
Inventory numbers
IA 20515 (Iowa bridge number)
BH 13196 (Bridgehunter.com ID)
Inspection report (as of June 2017)
Overall condition: Fair
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 74 (out of 100)
View more at BridgeReports.com

Update Log 

  • September 27, 2021: New photo from Peter Johnson
  • April 25, 2020: Updated by Nick Boppel: Fix name & map marker
  • November 7, 2017: New Street View added by Dana and Kay Klein
  • June 23, 2013: Photo imported by Dave King
  • June 11, 2012: Updated by Luke Harden: Added common name and alt. names,
  • October 29, 2010: New photos from Quinn Phelan
  • August 2, 2010: New Street View added by Jason Smith

Related Bridges 



Prairie Bridge
Posted July 11, 2019, by Ben Roethig (benroethig [at] gmail [dot] com)

There is actually a second US18 bridge here on the Prairie side for the east channel with a 350ft box girder main span.

Prairie Bridge
Posted June 11, 2012, by Spanfan (susorcar [at] yahoo [dot] comn)

The old bridge kind of looks like the old Silver Bridge in Ohio, except for the eyebars.