Iroquois County Highway 15 is a north-south highway in Northeastern Iroquois County. This runs from near Beaverville to Iroquois County Highway 31, near Iroquois. ICH 15 passes through the following town in Iroquois County. Beaverville ICH 15 intersects the following highways in Iroquois County. Iroquois County Highway 3, near Beaverville. Iroquois County Highway 3, near Beaverville. U.S. Rt. 52, near Donovan. Iroquois County Highway 2, near Donovan. Iroquois County Highway 2, near Donovan. Iroquois County Highway 31, near Iroquois. ICH 15 is multi-plexed in Iroquois County. Iroquois County Highway 3, near Beaverville. Iroquois County Highway 2, near Donovan.
