Illinois 116 is a long east-west route, which may be unexpected because of its high and obscure number. Other routes that span almost the entire state have low numbers like IL9 and IL17, but what kind of number is 116?

Anyway, IL116 runs from Ashkum near I-57 all the way through Peoria to IL94 near Stronghurst, which is southwest of Monmouth.

Intersections from west to east:

IL116 begins in the west at IL94 near Stronghurst

US67 near Roseville

BR67 in Roseville

IL41 near St. Augustine

IL97

IL78 joins from the south near Farmington

IL78 leaves toward the north

I-474**

IL8 joins from the west at Peoria

IL116 crosses US24 at Peoria as IL29 comes from the north on that route and turns east onto IL8/116 to add a third route onto the multiplex

IL29 leaves toward the south at East Peoria

US150 joins IL116 from the east, forming a "wrong-way multiplex" as IL8 breaks off

Strangely enough, IL8 crosses IL116 just after leaving it

I-74

US24 crosses IL116 again as US150 breaks off and heads west

IL26 at its southern terminus

IL89 at Metamora, and IL89's southern terminus

IL117 joins from the south

IL117 breaks off to the north near Benson

I-39/US51

IL251 joins from the south

IL251 departs to the north

I-55 near Pontiac

IL23 in Pontiac

IL47 near Saunemin

IL115

I-57 near Ashkum

IL116 ends in the east at US45 at Ashkum.

It passes through these towns: Media, Roseville, London Mills, Farmington, Hanna City, Peoria, E. Peoria, Metamora, Roanoke, Flanagan, Pontiac, Saunemin, Cullom, Ashkum.

**- There actually is no interchange of IL116 with I-474, but...

If you are on I-474, there is a "To 116" Exit near the airport, and if you are on IL116, take Harmon Hwy (the airport road) to I-474.

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