Highway marker photo
Illinois 121
Illinois Highway Ends Logo Illinois 120   Illinois 122

Illinois State Route 121

Illinois 121 angles southeast from I-55 in Lincoln to US 40 in Greenup. Before I-155 was built it extended north to Morton, east of Peoria. Route 121 has undergone a number of changes in its history having gone as far west as Peoria, and as far east as Indiana. The part from Decatur to the Indiana line was eventually superceded by US 36 even though it existed as a multiplex for a few years.
 
Illinois 121: Greenup (US 40) < 106 miles > Lincoln (I-55)

Google Map of Illinois 121

 


Cities Served: Bethany, Decatur, Greenup, Lincoln, Long Creek, Mattoon, Mount Zion, Mt. Pulaski, Sullivan, Toledo, Warrensburg
Counties Served: Coles, Cumberland, Logan, Macon, Moultrie
Multiplexes: Illinois 10, Illinois 32, US 36, US 45, Illinois 48, Illinois 105
Ending at Ill. 121: Illinois 128
Related Link: » Rich Carlson's Illinois Highway Page 121-140


  Northern Terminus: Lincoln   at I-55
      End Photographs
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Looking east from I-55 on Woodlawn Road
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Looking west to I-55 where Illinois 121 ends, but Illinois 10 continues
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Looking north on I-55 at Illinois 10/Illinois 121 interchange
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Looking south from the I-55 ramp
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A closer look at the end sign approaching I-55
Google Map   |
Tiger Map   |
USGS Aerial Imagery  

  Southern Terminus: Greenup   at US 40
      End Photographs
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Looking northeast towards route 130 in Greenup
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Looking south on route 130 in Greenup
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Looking north on route 130 toward I-70 where route 121 begins
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A closeup of the end sign at Illinois 130
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Looking southwest on Cumberland Street in Greenup (old National Road)
Google Map   |
Tiger Map   |
USGS Aerial Imagery  

  Multiplex Photographs:
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IL 10/IL 121: Approaching Lincoln from I-55 interchange
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Ill. 48/Ill. 121: Looking east
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Ill. 32/Ill. 121: Looking north
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US 45/Illinois 121: Looking south at I-57
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Ill. 16/US 45/Ill. 121: Westbound at very short multiplex in Mattoon
Illinois 120 Illinois 122
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