Hale Bridge

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Wapsipinicon River, near the mouth of Dutch Creek, Anamosa, Iowa

Bowstring pony truss bridge over Wapsipinicon River, Relocated from 100th Avenue in Hale Township to a site near Anamosa in 2006.


Overview Looking Northeast

This bridge was moved here in 2006 from its original location. The bridge was moved by the National Guard, by helicopter, as part of a training exercise. Some folks referred to this as "The Flying Bridge" for some time afterward.

Photo taken by J.R. Manning in March 2013




The three-span Hale Bridge is a striking, and extremely rare, example of what was once a common bridge form: the bowstring arch-truss. In the 1860s and 1870s bowstring arch-trusses were used extensively because of their great structural efficiency and relatively low construction costs. The Hale Bridge is an excellent example of the work of the King Iron Bridge and Manufacturing Company, a major bridge fabricator who erected a great number of this type of bridge throughout the nation, including in Iowa. -- Historic American Engineering Record (HAER IA-59)

National Register information 

Posted to the National Register of Historic Places on May 15, 1998
Reference number
Architectural style
Other architectural type; bowstring through arch truss
Area of significance
Level of significance
Evaluation criteria
C - Design/Construction
Property type
Historic function
Current function
Period of significance
Significant years
1877; 1879

Update Log 

  • September 2, 2014: Photos imported by Dave King
  • March 23, 2013: New photos from J.R. Manning
  • March 22, 2013: Updated by J.R. Manning: Reset map to show the current location of the bridge.