Fort Atkinson Bridge
Photo taken October 2005 by Jason & Birgit Smith
BH Photo #101907
Located in the small town of Fort Atkinson in southwestern Winneshiek County, this medium-span truss carries a county road over an intermittent stream. The structure dates to 1892. That year the Winneshiek county Board of Supervisors let a series of private contracts for fabrication and erection of this 135-foot, pinned Pratt truss. As indicated by a plate on the bridge itself, it was built by D.H. Young of Manchester, Iowa. County records do not reveal the total cost of the bridge. Called the Fort Atkinson Bridge locally, this steel truss features a Pratt configuration and is supported by a timber and concrete substructure. This early Winneshiek County bridge continues to carry local traffic with partial substructural and approach span replacement as the only alterations of note.
From the early 1880s to the establishment of state bridge standards in 1913, the pin-connected Pratt through truss was virtually the exclusive structural type for medium-span roadway crossings in Iowa. Its standardized fabrication, economy of materials and ease of erection made it a mainstay among the various state and regional bridge companies. Thousands of such trusses were built throughout the state during this period, and numerous examples remain in place today. The Fort Atkinson Bridge is distinguished among these for its relatively early erection date, well-preserved condition and the decorative iron cresting on its portals adapted from Crow-Dolby and Fraser 1992].
- Through truss bridge over Little Turkey River on 150th Street in Fort Atkinson
- Fort Atkinson, Winneshiek County, Iowa
- Open to one-lane traffic
- Future prospects
- Slated for demolition and replacement.
- Built 1892 by D.H. Young of Manchester, Iowa
- - D.H. Young of Manchester, Iowa
- Pratt through truss
Length of largest span: 131.9 ft.
Total length: 183.1 ft.
Deck width: 16.1 ft.
Vertical clearance above deck: 11.0 ft.
Posted to the National Register of Historic Places on May 15, 1998
- Approximate latitude, longitude
- +43.15301, -91.92899 (decimal degrees)
43°09'11" N, 91°55'44" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 15/587079/4778362 (zone/easting/northing)
- Quadrangle map:
- Fort Atkinson
- Land survey
- T. 96 N., R. 9 W., Sec. 8 (Washington Township)
- Inventory numbers
- NRHP 98000460 (National Register of Historic Places reference number)
IA 346320 (Iowa bridge number)
BH 14732 (Bridgehunter.com ID)
- Inspection (as of 03/2013)
- Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Serious (3 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 17.1 (out of 100)
- Average daily traffic (as of 2013)
- October 10, 2017: Updated by Christopher Finigan: Added category "Pin-connected"
- September 11, 2013: New photos from Jason Smith
- October 11, 2012: Updated by Jason Smith: Added categories "A-frame portal", "ornated", "with finials"
- July 22, 2011: Updated by Luke Harden: Added description
- February 1, 2011: Updated by Nathan Holth: This bridge is now doomed.
- October 9, 2010: New photos from Ruth Reynolds
- December 19, 2005: Posted photos from Jason & Birgit Smith
- Jason Smith - flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com
- Ruth Reynolds - ruthmusic [at] yahoo [dot] com
- Historicbridges.org - by Nathan Holth