Location: I-55 and Route 3, East St Louis Reassurance shield as Route 3 joins the interstates. I-70 no longer follows this routing. Location: I-55 and 3rd St, East St Louis Exit at Exit 2A Route 15, which is not the Eads Bridge. Location: I-55 and 3rd St, East St Louis Exit left for Route 15. … Continue reading Illinois Route 3, I-55/I-64/I-70/US-40 to IL-15