Interstate 172

Interstate 172 (I-172) is a spur route from Interstate 72. The highway runs north from its start outside of Hannibal, Missouri to about 2.5 miles (4 km) west of Fowler, Illinois. At U.S. Highway 24, Interstate 172 becomes Illinois Route 336, which runs north and east to Macomb, Illinois via Carthage, Illinois. The entire portion of I-172 and I-72 from I-172 east to Springfield is also known by its former name, the Central Illinois Expressway.[2] I-172 is 19.69 miles (31.69 km) long.[1]

Interstate 172
I-172 highlighted in red
Route information
Auxiliary route of I-72
Maintained by IDOT
Length19.69 mi[1] (31.69 km)
Existed1995–present
Major junctions
South end
I-72 / US 36 / IL 110 (CKC) in Hull
North end
US 24 / IL 110 (CKC) / IL 336 in Quincy
Location
CountiesPike, Adams
Highway system
IL 171 IL 172

Route description

I-172 begins at a trumpet interchange with I-72/US 36, about 5 miles (8.0 km) east of Hannibal, MO, before immediately entering Adams County. I-172 enters the Quincy area at exit 10 (IL 96), passing to the far east of the city. I-172 ends just northeast of Quincy, ending at US 24, continuing north as IL 110/IL 336 (Chicago–Kansas City Expressway).

History

Interstate 172 originally was what Interstate 72 is now from Springfield, Illinois to the current interchange with I-172. This was approved by the American Association of State Highway and Transportation Officials (AASHTO) on June 9, 1991.

On April 23, 1995, after a re-examination by the Federal Highway Administration, the highway to Hannibal was re-designated I-72, with the highway north to Quincy, Illinois redesignated as Interstate 172. The highway is non-chargeable, meaning that even though it is an Interstate (designed and constructed to Interstate Highway standards and specifications), it was not built with federal funds.[3]

Exit list

CountyLocationmi[1]kmExitDestinationsNotes
PikeLevee Township0.000.000
I-72 / US 36 / IL 110 (CKC) west / Great River Road south Springfield, Hannibal, Kansas City
Southbound exit and northbound entrance; southern terminus, exit 0 is for 72 west; exit 4 eastbound/4A westbound on I-72.
AdamsFall Creek Township3.185.122 IL 57 Marblehead, Quincy
Melrose Township10.5216.9310 IL 96 (Payson Street, 36th Street) Quincy
Quincy14.4723.2914 IL 104 / Broadway QuincyServes Quincy Airport
Ellington Township15.9025.5915Columbus Road, Wismann Lane
19.6931.6919 US 24 to IL 96 Mount Sterling, Keokuk

IL 110 (CKC) east / IL 336 north Carthage, Macomb
Continuation beyond US 24
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

References

  1. Illinois Technology Transfer Center (2007). "T2 GIS Data". Retrieved 2007-11-08.
  2. Schoenburg, Bernard (1995-04-28). "Road to the top? Designation puts expressway in the 'big leagues'". The State Journal-Register (Springfield, IL).
  3. Kurumi. Interstate x72. Last updated November 20, 2005. Retrieved May 14, 2006.

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