Signal work planned at two U.S. 61 intersections in Hannibal on Monday.

On Monday, Oct. 8, traffic will be reduced to one lane on U.S. 61 northbound and southbound at the intersections of Market Street and Route MM in Hannibal for signal work. Utility crews will be working in the north and southbound lanes at various intervals throughout the night from 8 p.m. until 5 a.m. to minimize congestion and delays during the day.