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Illinois Route 100
State highway in southwestern Illinois, US / From Wikipedia, the free encyclopedia
Illinois Route 100 (IL-100) is a 159.09-mile-long (256.03 km) state highway in the southwest Illinois. It generally parallels the Illinois River. Starting in downtown Alton, it trends northward to Buckheart Township near Canton. It makes up much of the Illinois River Road, a U.S. National Scenic Byway.[1]
Quick Facts Route information, Length ...
IL 100 highlighted in red | ||||
Route information | ||||
Maintained by IDOT | ||||
Length | 159.09 mi[1] (256.03 km) | |||
Existed | 1924[2]–present | |||
Major junctions | ||||
South end | ![]() | |||
Major intersections | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |||
North end | ![]() | |||
Location | ||||
Country | United States | |||
State | Illinois | |||
Counties | Madison, Jersey, Greene, Calhoun, Pike, Scott, Morgan, Cass, Schuyler, Fulton | |||
Highway system | ||||
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