(HANNIBAL)—Work on Missouri 79 south of Hannibal is progressing. Local residents who drive through the work zone south of Hannibal have experienced a change of lanes as crews pave the old northbound lanes.  In late August… the second phase of work between Fulton Avenue and Continental Cement will result in two way traffic with a timed signal to control traffic flow. All work is expected to be complete by mid to late September.