Washington C.H. Record-Herald November 23, 1957
BH Photo #529629
I looked them up and they got some beautiful bridges in their history, especially their Parker spans.
Champion was a major player in bridge building for a long time. Zimri Wall was building covered bridges before later starting Champion. The firm is still in business today, although I don't think they build bridges anymore. They consider the Martinsville Covered Bridge (built by Wall in 1871) to be their oldest contract. Surviving examples of their metal truss bridges can be found in a number of states.
That could be. I don't know anything about Champion, as I have never seen their bridges in my region of the state. Of course, being 30 years as of this comment, my experience with through trusses and trusses in general is limited.
Newspapers have a knack for being vague in the details, and I suspect in this case the "Wilmington Bridge Company" referred to was actually the Champion Bridge Company of Wilmington, Ohio.