Illinois 351 is a short connector of IL251, IL71, US515 and I-39 to the City of LaSalle. It starts at IL251 and runs along IL71, parallelling I-39 to the east, then winding to the west side of I-39 as IL71 leaves to the east toward Ottawa.
Intersections from north to south:
IL351 begins at I-80
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IL351 meets US6 in LaSalle
US6 follows IL351 south for 2 blocks, then US6 breaks off and heads west
IL71 comes from the east to join IL351 south through Oglesby
IL351 ends at IL251 with a multiplex with IL71, which continues onward.
It passes through these towns: Oglesby and LaSalle.
