MT. VERNON, ILL. — Hoar Construction has broken ground for a new addition to Crossroads Community Hospital in Mt. Vernon. The project will include a three-story, 48,000-square-foot addition containing 40 beds as well as radiology and lab departments. In addition, the existing emergency room and waiting area will be renovated. The hospital will remain open during construction, which will be complete by August 2012. Hart Freeland Roberts is the project architect. Franklin, Tenn.-based Community Health Systems owns the hospital.