Location: Route 3 and I-55, East St Louis At the Route 3 split, traffic entering from Missouri is welcomed to Illinois. Location: Route 3 and I-55, East St Louis Reassurance shield after the split. Location: Route 3 and Mississippi Ave, Sauget A couple miles later, we’ll enter Sauget. Location: Route 3 and Route 157, Cahokia … Continue reading Illinois Route 3, I-55/I-64/US-40 to IL-157