From Interstate 55, take Exit 100B Sangamon Avenue. Stay on Sangamon Avenue heading West. Sangamon Avenue runs directly in front of the Illinois State Fairgrounds. Continue past the front gate of the fairgrounds, staying on Sangamon Avenue to 5th Street. Turn right on 5th Street and head North to Gate 9. Turn into gate 9 and Orr Building is on your left. For Mapquest directions use the address of 2527 N. 5th Street, Springfield, Illinois and that will guide you right to Gate 9.