Illinois State Route 17 is the only east-west surface road across Marshall County. This highway also has the first crossing on the Illinois River, north of the Peoria Metro Area. IL St Rt 17 passes through the following towns in Marshall County. Wenona
Lacon
Sparland
Camp Grove IL St Rt 17 is multi-plexed in Marshall County. Illinois State Route 251, near Wenona.
A Mile marker in Marshall County. EB IL St Rt 17/SB IL St Rt 40 near La Prairie Center. WB IL St Rt 17 between the Illinois River and Sparland. WB IL St Rt 17 near the Illinois River in Lacon. Looking north at the IL St Rt 17 bridge over the Illinois River at Lacon. WB IL St Rt 17 on the east side of the Illinois River. WB IL St Rt 17 on the west side of the Illinois River. WB IL St Rt 17 in Lacon. WB IL St Rt 17 on the bluff east of Lacon. WB IL St Rt 17 near Varna. WB IL St Rt 17 west of I-39/U.S. Rt. 51. A BGS on NB I-39/U.S. Rt. 51. A junction marker on NB IL St Rt 251. A junction sign in Wenona. A guide marker on EB IL St Rt 17/NB IL St Rt 251 in Wenona. WB IL St Rt 17 in Wenona, east of IL St Rt 251.
