Old Mill Road Bridge
The Old Mill Road Bridge is a historic bridge near Rocky [Ridge, Maryland|Rocky Ridge], Frederick County, Maryland, United States. The bridge spans Owens Creek southwest of Rocky Ridge on Old Mill Road. It is a Pratt half-hip through truss structure in a single span long and. It was built in 1882 by the Pittsburgh Bridge Company.
The Old Mill Road Bridge was listed on the National Register of Historic Places in 1979.