Illinois Route 109

Illinois Route 109 (IL 109) is a 8.22-mile-long (13.23 km) minor north–south state road in southwest Illinois. It runs from Illinois Route 3 east of Newbern north to U.S. Route 67 in Jerseyville.[1]

Illinois Route 109 marker

Illinois Route 109

McClusky Road
IL 109 highlighted in red
Route information
Maintained by IDOT
Length8.22 mi[1] (13.23 km)
Major junctions
South end IL 3 in Dow
North end US 67 in Jerseyville
Location
CountryUnited States
StateIllinois
CountiesJersey
Highway system
← IL 108→ IL 110

Route description

Illinois 109 is a two-lane, undivided surface road in Jersey County for its entire length. Traveling northbound from IL 3, it goes directly north for a short distance, and then curves. Right after these curves, it passes by unincorporated McClusky, and resumes traveling due north for the remainder of its length. Within the town of Jerseyville, it picks up the name McClusky Road. Its northern terminus is at US 67 (State Street) in Jerseyville.

History

SBI Route 109 originally ran from Grafton to East Newbern (at the corner of modern-day Illinois 3 and Illinois 109) on what is now Illinois 3. In 1947, U.S. 67 was rerouted through New Delhi — the former alignment became Illinois Route 100 south of East Newbern, and Illinois 109 north. In 1987, Illinois 3 took over the 1924 routing of Illinois 109 when Illinois 100 was moved onto a new highway south of Grafton.[2]

In 1987 IDOT announced that the segment of IL 109 from Route 3 to Jerseyville would become an unmarked state highway[3] but it remains IL 109 as of today.

Junction list

The entire route is in Jersey County.

LocationmikmDestinationsNotes
Newbern0.00.0 IL 3Southern terminus
Jerseyville8.2213.23 US 67Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References
  1. Illinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved November 8, 2007.
  2. Carlson, Rich. Illinois Highways Page: Routes 101 thru 120. Last updated March 15, 2005. Retrieved May 1, 2006.
  3. Alton Telegraph, November 26, 1987
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