This small but well-designed one-arch bridge, spanning only a millrace diverted from Antietam Creek proper, is typical of many similar bridges at county mill sites that have not survived. It is uncertain whether John Weaver built the fifty-three-foot bridge, which the county government would not have considered necessary. Conjecture holds that the Claggetts contracted to have it built in 1841 after the completion of the nearby three-arch bridge.