Oman-Gibson Associates (OGA), a full-service health care real estate firm based in Nashville, recently broke ground on an orthopaedic office building complex for Tennessee Orthopaedic Alliance (TOA) in Clarksville, Tenn. The new 27,750-square-foot medical office building will be located on a 6.81-acre site off I-24 Exit 11 at 1000 S. Gateway Blvd. and is a relocation of the physician group's Clarksville offices, currently located at 141 Hillcrest Drive in Clarksville.