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Interstate 172

{{short description|Interstate Highway in Illinois}}

{{redirect|I-172|the Japanese submarine I-172|Japanese submarine I-72}}

{{Use mdy dates|date=April 2022}}

{{Use American English|date=April 2022}}

{{Infobox road

|state=IL

|route=172

|type=I

|map={{maplink-road|from=Interstate 172.map}}

|map_custom=yes

|map_notes=I-172 highlighted in red

|established=1995

|length_mi=19.69

|length_ref={{cite web |author=Illinois Technology Transfer Center |url=http://www.dot.state.il.us/gist2/select.html |title=T2 GIS Data |access-date=2007-11-08 |year=2007}}

|spur_type=I

|spur_of=72

|direction_a=South

|terminus_a={{Jct|state=IL|I|72|US|36|CKC}} in Hull

|direction_b=North

|terminus_b={{Jct|state=IL|US|24|CKC||IL|336}} in Quincy

|counties=Pike, Adams

|previous_type=IL

|previous_route=171

|next_type=IL

|next_route=172

}}

Interstate 172 (I-172) is a spur route, the only auxiliary route of I-72. It is located entirely within the US state of Illinois and is completely concurrent with IL 110. The highway runs north from its start outside of Hannibal, Missouri, to about {{Convert|2.5|mi|km}} west of Fowler. At U.S. Route 24 (US 24), I-172 becomes Illinois Route 336 (IL 336), which runs north and east to Macomb via Carthage. 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.{{cite news |title=Road to the top? Designation puts expressway in the 'big leagues' |last=Schoenburg |first = Bernard |date=1995-04-28 |work=The State Journal-Register |location = Springfield, Illinois |url=http://docs.newsbank.com/openurl?ctx_ver=z39.88-2004&rft_id=info:sid/iw.newsbank.com:NewsBank:SJRB&rft_val_format=info:ofi/fmt:kev:mtx:ctx&rft_dat=0EB1485776342992&svc_dat=InfoWeb:aggregated4&req_dat=AA98CDC331574F0ABEAFF732B33DC0B2}} I-172 is {{convert|19.69|mi|km}} long.

Route description

I-172 begins at a trumpet interchange with I-72/US 36, about {{convert|5|mi|km|spell=in}} east of Hannibal before immediately entering Adams County while concurrent with IL 110 (Chicago–Kansas City Expressway). 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.

History

I-172 originally was what I-72 is now from Springfield 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 reexamination by the Federal Highway Administration (FHWA), the highway to Hannibal was redesignated I-72, with the highway north to Quincy redesignated as I-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.{{cite web |author = Kurumi |url = http://www.kurumi.com/roads/3di/ix72.html |title = Interstate x72 |date = November 20, 2005 |work = Kurumi |access-date = May 14, 2006 }}{{sps|certain=yes|date=April 2022}}

Exit list

{{Jcttop|exit|length_ref=}}

{{ILint|exit

|county=Pike

|location=Levee Township

|ctdab=Pike

|mile=0.00

|exit=0

|road={{Jct|state=IL|I|72|US|36|CKC||dir3=West|GRR|dir4=south|city1=Springfield|location2=Hannibal|location3=Kansas City}}

|notes=Southbound exit and northbound entrance; southern terminus, exit 0 is for 72 west; exit 4 eastbound/4A westbound on I-72.

}}

{{ILint|exit

|county=Adams

|cspan=6

|location=Fall Creek Township

|ctdab=Adams

|mile=3.18

|exit=2

|road={{Jct|state=IL|IL|57|city1=Marblehead|city2=Quincy}}

}}

{{ILint|exit

|location=Melrose Township

|ctdab=Adams

|mile=10.52

|exit=10

|road={{Jct|state=IL|IL|96|name1=Payson Street, 36th Street|city1=Quincy}}

}}

{{ILint|exit

|location=Quincy

|mile=14.47

|exit=14

|road={{Jct|state=IL|IL|104|road|Broadway|city1=Quincy}}

|notes=Serves Quincy Airport

}}

{{ILint|exit

|location=Ellington Township

|lspan=3

|ctdab=Adams

|mile=15.90

|exit=15

|road=Columbus Road, Wismann Lane

}}

{{ILint|exit

|mile=19.69

|exit=19

|road={{Jct|state=IL|US|24|to2=to|IL|96|city1=Mount Sterling|location2=Keokuk}}

}}

{{ILint|exit

|mile=

|road={{Jct|state=IL|CKC||IL|336|dir1=east|dir2=north|city1=Carthage|city2=Macomb}}

|notes=Continuation beyond US 24

}}

{{Jctbtm|exit}}

See also

  • {{portal-inline|U.S. roads}}
  • {{portal-inline|Illinois}}

References

{{Reflist}}

External links

{{Attached KML|display=inline,title}}

  • {{ccat-inline}}

72-1

72-1

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Category:Transportation in Pike County, Illinois

Category:Transportation in Adams County, Illinois