Illinois 666 covers 163.77 miles of ground. It runs east-west across the state, basically serving as a roadway to complement I-70. Such a road will never exist. The only reason I have this portion of roadway is because it fits the puzzle. Illinois is the only state with no intentionals and no already existing portions.
| Exit Number/Mile Marker | Eastbound | Westbound | Other Features | ||||||||||
| WELCOME TO ILLINOIS | WELCOME TO MISSOURI | ||||||||||||
|
1 |
Chicago |
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| Mile 1.45 |
|
BRIDGE
|
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| 3 |
Edwardsville Road |
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| 7 |
Kings Highway |
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| 11A | SOUTH
Centreville |
Exit 29 |
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|
11B |
Missouri |
Exit 29 |
|||||||||||
|
15 |
Effingham |
Exit 11 |
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| Mile 15.20 |
|
|
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|
23 |
Marine |
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|
32 |
Alhambra |
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| 47 |
Donnellson |
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| 57 |
Van Burensburg |
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| 69 |
Ransey |
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| 84 |
Cowden |
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| 97 |
Stewardson |
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| 105A | SOUTH
Cape Girardeau |
Exit 170 |
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| 105B | NORTH
Chicago |
Exit 170 |
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| 117 |
Toledo |
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| 133 |
Westfield |
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| 141 |
Kansas |
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| 155 |
Paris |
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| Mile 163.77 | WELCOME TO INDIANA | WELCOME TO ILLINOIS | |||||||||||
