Springboro, Ohio
Concrete microwave tower near Springboro, Ohio. The tower was one of four originally constructed in the early 1950s as part of a microwave circuit and was constructed to carry network television programming from Dayton to Columbus and Cincinnati. A Type 4C concrete tower, it stands 178 feet tall. A 100-foot steel tower was later added to the top. Terry Michaels has more information on this tower and site here.