One characteristic of masonry structures in general, and stone arch bridges specifically, is the fact that the person(s) who built the bridge inevitably left behind a hallmark. Not just any and all plaques, but the workmanship itself is often telltale. Each builder has his own method, and, in the case of bridge contractors, the contracting company itself had its own method. Walter Sharp Walter Sharp, who built many bridges in Kansas, generally used large, chunky blocks of stone, not … [Read more...] about Stone Arch Bridges: Who Built It?