Elkader Truesdell Bridge
Public Domain: Published Prior to 1923
BH Photo #336050
The Elkader Bridge was an iron bridge of Truesdell patent design. It was poorly constructed and suffered badly under the ever increasing loads of this growing community.
In 1888, the Clayton County Board of Supervisors hired M. Tschirgi Jr., a respected civil engineer from the city of Dubuque, to assess the condition of their troubled bridge.
After a thorough examination, he submitted the following evaluation on June 6:
"the superstructure, consisting of four spans of Truesdell design, aggregating 202 feet in length is both faulty in design and in very poor condition to withstand the maximum load usually allowed for highway bridges, and judged by the standard of the specifications for iron highway bridges, it would be condemned."
Tschirgi stated that this type of bridge, even in perfect condition, could only carry 50 pounds per square foot, due to the faulty design of Truesdell.
This bridge in its current condition could fail under even less load. Heeding his advice, county supervisors condemned the old bridge immediately." - HAER No. IA-47
- Lost Truesdell Truss bridge over Turkey River on Road
- Elkader, Clayton County, Iowa
- Replaced by a new bridge
- Built 1870; Replaced 1889
- - W.H. & L.E. Truesdell of Belvidere, Illinois
- Truesdell Truss
Total length: 202.0 ft.
- Approximate latitude, longitude
- +42.85503, -91.40383 (decimal degrees)
42°51'18" N, 91°24'14" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 15/630407/4745951 (zone/easting/northing)
- Quadrangle map:
- Inventory number
- BH 62539 (Bridgehunter.com ID)
- July 20, 2021: Updated by Chester Gehman: Entered build date of 1870 per forum note from Ann Marie Rock
- April 1, 2021: Updated by Chester Gehman: Removed Build date of 1851
- February 23, 2021: New photos from David Beck
- August 20, 2015: New photo from Luke
- August 17, 2014: Added by Luke
- David Beck
- Chester Gehman - gehmanc2000 [at] yahoo [dot] com