Kilbourn Bridge

3 miles W. of IA 1, Kilbourn, Iowa

Map 

Description 

The Kilbourn Bridge is significant as the first large-scale engineering project undertaken by the Iowa State Highway Commission and one of the only pin-connected truss designs used by the ISHC prior to adopting its standard, rigid-connected truss plans in 1913. It is a well-preserved example of wagon truss construction and one of the last of the multiple-span six pin-connected Pratt through trusses remaining in Iowa. -- Historic American Engineering Record (HAER IA-85)

National Register information 

Note: The following information comes from the NRHP database and has not been verified.
Status
Posted to the National Register of Historic Places on May 15, 1998
Reference number
98000477
Architectural style
Other architectural type; Pinned Pratt through truss
Area of significance
Engineering
Level of significance
State
Evaluation criteria
C - Design/Construction
Property type
Structure
Historic function
Road-related
Current function
Road-related
Period of significance
1900-1924
Significant years
1908; 1909

Sources