A water main break has happened in Cape Girardeau and some residences are under a precautionary boil water advisory. According to the City of Cape, a 12-inch break happened on Cape LaCroix Road near Boutin Drive. It was reported around noon Sunday. Shortly after a precautionary boil water advisory was issued for 1,120 addresses in the northern area of the city that is in effect until Dec. 31 at 6 p.m.