A detour will cause some heavy traffic in Niagara Falls today. There is work happening on the CN Rail crossing on Drummond Road causing traffic to find another way around the area. Drummond Road will be closed between Portage Road and Morrison Street. The closure will run until 6:00pm. Traffic on Dorchester and Drummond will be heavier than usual. The ongoing work on the 420 is expected to wrap up in mid-November.