La Salle County Highway 12 runs east-west in Northwestern La Salle County. This highway runs from Earlville to Illinois State Route 251, north of Mendota. LSCH 12 passes through the following town in La Salle County. Earlville LSCH 12 crosses the following highways in La Salle County. Illinois State Route 251, near Mendota. Interstate 39, near Welland. (NO INTERCHANGE) U.S. Rt. 51, near Welland. (NO INTERCHANGE) La Salle County Highway 10, near Meriden.
EB LSCH 12, east of IL St Rt 251. EB LSCH 12 looking east from the I-39/U.S. Rt. 51 overpass.
