| ADC ENGINEERING, INC. AND RB TODD ENGINEERING... The merger between ADC, a firm that offers civil, structural and aviation engineering and landscape architecture services from offices in Charleston, Columbia and Greenville and RB Todd, a civil engineering firm in Columbia, South Carolina will allow both firms to better serve clients in the Midlands and increase the depth of resources throughout the state. State Museum to Host An Enchanted Tea Party COLUMBIA, S.C., Thursday, Dec. 12, 2019 – The State Museum excited to present An Enchanted Tea Party, a magical new holiday event sure to spark young guests’ imagination from 6 p.m. until 9 p.m., Friday, Dec. 27. | 