Illinois State Route 40 is the western most north-south surface highway in Bureau County. This gives access to the Hennepin Canal State Trail from I-80. IL St Rt 40 passes through the following town in Bureau County. Buda
IL St Rt 40 is not multi-plexed in Bureau County. IL St Rt 40 intersects the following highways in Bureau County. Illinois State Route 92, near Normandy.
SB IL St Rt 40 at the Bureau/Whiteside County Line. A junction marker on EB IL St Rt 92. NB IL St Rt 40 near Manlius. NB IL St Rt 40 north of I-80. A BGS on WB I-80. A BGS on EB I-80. A BGS on WB I-80. SB IL St Rt 40 at the Hennepin Canal, just south of the I-80 interchange. SB IL St Rt 40 at the UP (former CNW) railway underpass, near U.S. Rt. 6/34.