Mystery Bridge Nr. 59: An Undiscovered Waddell Truss

Photos courtesy of MnDOT
Photos courtesy of MnDOT

History sometimes has its doubts, especially when it comes to historic bridge inventories conducted by state and national governments. According to sources by the Minnesota Historic Society and the Minnesota Department of Transportation, there was supposed to be one kingpost truss bridge remaining in the state- the one located at Schoneman Park, south of Interstate 90 on US Hwy. 75 in Luverne, in Rock County (click here to view the photos).

But did you know that there is ANOTHER kingpost truss bridge, a design similar to the Schoneman Park Bridge in Clearwater County?  According to a discovery made by the Inspection Unit of MnDOT recently, there is.  The bridge is located over the Clearwater River, ten miles west of the Bagley Lake State Preserve and six miles east of nearby Gronvich, and features Waddell pony truss, with welded connections and a 10° angled outer wing on each side. The truss design was patented by J.A.L. Waddell but there are only a handful of these trusses left, including two through trusses (one in Kansas and one in Louisiana) and now two in Minnesota. The bridge is 37 feet long, and even though there was no date on the construction of the bridge, it is possible that the bridge was built between 1905 and 1910, possibly by the Hewett family. The reason: The bridge is nearly identical to the one in Luverne with only a few minor exceptions. This includes the length difference as well as the riveted connections on the top portion of the one at Schoneman.

The bridge has been bypassed by a new crossing, but it is now privately owned, an example of a farmowner’s willingness to keep a piece of history for private use. Despite this success, some more information is needed as to when it was exactly built and by whom. While the information in the bridgehunter.com website, it is based on the national bridge inventory page, and more research is needed to determine whether the construction date is correct. Furthermore, it is unknown whether Hewett built this or if another bridge company contributed to the work.

If you know more about this bridge (a.k.a. Bridge L 1297), please contact Jason Smith at the Chronicles, using the contact details below. The information will be updated in the bridgehunter.com website along with photos you wish to contribute. Some photos can be found here as well as in the website as well.  Best of luck in finding some information and stories pertaining to this bridge. 🙂

L1297b

Many thanks to Pete Wilson at MnDOT for the discovery and the information/ photos.

bhc new logo jpeg