On Wednesday, May 22, MoDOT will be replacing loop detectors on Route MM at the intersection of U.S. 61 in Hannibal. Traffic will be reduced to one lane with the right turn lane onto U.S. 61 closed from 8 a.m. to 5 p.m. near the Route MM entrance into Ayerco.
Loop detectors are in-ground devices used to notify the signal when vehicles are stopped at the intersection; they activate the traffic signal to change. Once the loop detectors are replaced, crews will repair the pavement at the intersection. To avoid delays, alternate routes are suggested.