DDI Media is the leading provider of billboard and digital media advertising in the Greater St. Louis, metropolitan area. This includes the City of Weldon Spring, Missouri, located in St. Charles County.
Within Weldon Spring, DDI Media operates a selection of billboard advertising faces. Some of these billboards are located on the north side of I-64 just east of Highway 94. The other billboard structures are located along Highway 94 a half mile north of I-64.