Illinois Route 73 | ||||
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Route information | ||||
Maintained by IDOT | ||||
Length: | 29.32 mi[2] (47.19 km) | |||
Existed: | 1924[1] – present | |||
Major junctions | ||||
South end: | U.S. Route 52/Illinois Route 64 south of Lanark | |||
North end: | Green CTH M at the Wisconsin border between Martintown, Wisconsin and Winslow | |||
Location | ||||
Counties: | Carroll, Stephenson | |||
Highway system | ||||
Illinois state highway system
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Illinois Route 73 is a north–south state highway in northwest Illinois. It runs from the U.S. Route 52/Illinois Route 64 concurrency south of Lanark north to the Wisconsin border north of Winslow. This is a distance of 29.32 miles (47.19 km).[2]
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Illinois 73 is a two-lane surface road for its entire length. At its northern terminus, Illinois 73 becomes County Highway M in Green County, Wisconsin. This is the only state highway that does not either continue as another state highway, or end at a ferry crossing (current or former).[1]
SBI Route 73 existed from Illinois Route 72 north of Lanark to Winslow. Around 1982, it replaced Illinois 72 from north of Lanark south to U.S. Route 52.[1]