Illinois State Route 4 is hte main north-south surface road in Central and South-Central Sangamon County. This connects many small towns and cities on Springfield's southside to each ohter. In Springfield, IL St Rt 4 is know at Veterans Parkway. This provides access to many shopping centers on the rapidly building westside of town. IL St Rt 4 use to end at IL St Rt 29 near Capital Airport on the northside of Springfield, but recently it was extended to BUSN. Loop I-55 (Peoria Road) near the state fairground. IL St Rt 4 passes through the following towns in Sangamon County. Thayer
Auburn
Chatham
Springfield
IL St Rt 4 is not multi-plexed in Sangamon County. IL St Rt 4 intersects the following highways in Sangamon County. Illinois State Route 104, at Auburn.
NB IL St Rt 4 south of Thayer. NB IL St Rt 4 north of Thayer. A BGS on EB I-72/U.S. Rt. 36. Another BGS on EB I-72/U.S. Rt. 36 with a guide for Capital Airport. SB IL St Rt 4 near Walbash Ave. SB IL St Rt 4, just south of IL St Rt 97. A junction marker on SB IL St Rt 97. SB IL St Rt 4 just west of IL St Rt 29 near Capital Airport. NB IL St Rt 4 near Peoria Road. A Sangamon County mile sign near the state fair grounds. Signage on a access road at the state fairgrounds. Overhead sign on SB BUSN. Loop I-55 at the intersection of Peoria Road/Color Plant Road/ and Veterans Parkway in Springfield. A BGS on SB I-55. This is the start of IL St Rt 4. BGS indicating the end to Veterans Parkway at Peoria Road. Northern end marker.
