Interstate 72 In Missouri
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Interstate 72 (I-72) is an
Interstate Highway The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, or the Eisenhower Interstate System, is a network of controlled-access highways that forms part of the National Hi ...
in the
Midwestern United States The Midwestern United States (also referred to as the Midwest, the Heartland or the American Midwest) is one of the four census regions defined by the United States Census Bureau. It occupies the northern central part of the United States. It ...
. Its western terminus is in
Hannibal, Missouri Hannibal is a city along the Mississippi River in Marion County, Missouri, Marion and Ralls County, Missouri, Ralls counties in the U.S. state of Missouri. According to the 2020 United States census, 2020 U.S. Census, the population was 17,108, ...
, at an intersection with U.S. Route 61 (US 61); its eastern terminus is at Country Fair Drive in
Champaign, Illinois Champaign ( ) is a city in Champaign County, Illinois, United States. The population was 88,302 at the 2020 census. It is the List of municipalities in Illinois, tenth-most populous municipality in Illinois and the fourth most populous city in ...
. The route runs through the major cities of
Decatur, Illinois Decatur ( ) is the largest city in Macon County, Illinois, United States, and its county seat. The city was founded in 1829 and is situated along the Sangamon River and Lake Decatur in Central Illinois. As of the 2020 United States census, 2020 ...
, and
Springfield, Illinois Springfield is the List of capitals in the United States, capital city of the U.S. state of Illinois. Its population was 114,394 at the 2020 United States census, which makes it the state's List of cities in Illinois, seventh-most populous cit ...
. In 2006, the
Illinois General Assembly The Illinois General Assembly is the legislature of the U.S. state of Illinois. It has two chambers, the Illinois House of Representatives and the Illinois Senate. The General Assembly was created by the first state constitution adopted in ...
dedicated all of I-72 as Purple Heart Memorial Highway. The stretch between Springfield and Decatur is also called Penny Severns Memorial Expressway, and the section between mile 35 and the
Mississippi River The Mississippi River is the main stem, primary river of the largest drainage basin in the United States. It is the second-longest river in the United States, behind only the Missouri River, Missouri. From its traditional source of Lake Ita ...
is known as the Free Frank McWorter Historic Highway.


Route description

, - , MO , , - , IL , , - , Total ,


Missouri

I-72 runs for just over in the state of
Missouri Missouri (''see #Etymology and pronunciation, pronunciation'') is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it border ...
. Its western terminus is an interchange with US 61 to the
Mark Twain Memorial Bridge The Mark Twain Memorial Bridge is a bridge over the Mississippi River at Hannibal, Missouri, childhood home of Mark Twain, for whom the bridge is named. The bridge, north of the original bridge, was finished in 2000. The bridge carries traff ...
over the
Mississippi River The Mississippi River is the main stem, primary river of the largest drainage basin in the United States. It is the second-longest river in the United States, behind only the Missouri River, Missouri. From its traditional source of Lake Ita ...
. This bridge connects the city of
Hannibal Hannibal (; ; 247 – between 183 and 181 BC) was a Punic people, Carthaginian general and statesman who commanded the forces of Ancient Carthage, Carthage in their battle against the Roman Republic during the Second Punic War. Hannibal's fat ...
with
Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. It borders on Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash River, Wabash and Ohio River, Ohio rivers to its ...
. Presently, there are only two exits for I-72 in Missouri.


Illinois

I-72 parallels the old
Wabash Railroad The Wabash Railroad was a Class I railroad that operated in the mid-central United States. It served a large area, including track in the states of Ohio, Indiana, Illinois, Iowa, Michigan, and Missouri and the province of Ontario. Its primary con ...
from Hannibal, east through Illinois to
Champaign, Illinois Champaign ( ) is a city in Champaign County, Illinois, United States. The population was 88,302 at the 2020 census. It is the List of municipalities in Illinois, tenth-most populous municipality in Illinois and the fourth most populous city in ...
. The
Norfolk Southern Railway The Norfolk Southern Railway is a Class I freight railroad operating in the Eastern United States. Headquartered in Atlanta, the company was formed in 1982 with the merger of the Norfolk and Western Railway and Southern Railway. The comp ...
operates this railroad route today. In
Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. It borders on Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash River, Wabash and Ohio River, Ohio rivers to its ...
, I-72 runs for . The portion of I-72 and I-172 from Springfield to Quincy is commonly referred to as the Central Illinois Expressway (CIE). , I-72 has one
business route A business route (or business loop, business spur, or city route) in the United States is a short special route that branches off a parent numbered highway at its beginning, continues through the central business district of a nearby city or to ...
; I-72 Business (I-72 Bus.) in
Jacksonville Jacksonville ( ) is the most populous city proper in the U.S. state of Florida, located on the Atlantic coast of North Florida, northeastern Florida. It is the county seat of Duval County, Florida, Duval County, with which the City of Jacksonv ...
. Near Valley City at mile-marker 42 are the
Valley City Eagle Bridges The Valley City Eagle Bridges is a set of bridges that carry Interstate 72 and U.S. Route 36 across the Illinois River. The bridge is located near Valley City, Illinois, the smallest municipality in the state. Description The bridges are post-t ...
. These two individual two-lane spans bridge the
Illinois River The Illinois River () is a principal tributary of the Mississippi River at approximately in length. Located in the U.S. state of Illinois, the river has a drainage basin of . The Illinois River begins with the confluence of the Des Plaines ...
in rural west-central Illinois. Near milemarker 78, a sign marks 90 degrees longitude. At its eastern terminus in Champaign, I-72 continues as Church Street (westbound) and University Avenue (eastbound), which stay as
one-way street One-way traffic (or uni-directional traffic) is traffic that moves in a single direction. A one-way street is a street either facilitating only one-way traffic, or designed to direct vehicles to move in one direction. One-way streets typicall ...
s for an additional into downtown Champaign.


History

First constructed in 1971, I-72 ran from Springfield at
I-55 Interstate 55 (I-55) is a major Interstate Highway in the central United States. As with most primary Interstates that end in a five, it is a major cross-country, north–south route, connecting the Gulf of Mexico to the Great Lakes. The ...
to
Champaign Champaign ( ) is a city in Champaign County, Illinois, United States. The population was 88,302 at the 2020 census. It is the tenth-most populous municipality in Illinois and the fourth most populous city in the state outside the Chicago metr ...
at
I-57 Interstate 57 (I-57) is a north–south Interstate Highway that exists in two segments. It runs through Arkansas, Missouri, and Illinois. I-57 parallels the old Illinois Central Railroad for much of its route north of I-55. The Interstate ...
until the 1990s. On June 9, 1991, the
American Association of State Highway and Transportation Officials The American Association of State Highway and Transportation Officials (AASHTO) is a standards setting body which publishes specifications, test protocols, and guidelines that are used in highway A highway is any public or private road ...
(AASHTO) approved the establishment of I-172 from the western terminus of I-72 at Springfield to Fall Creek, east of
Hannibal, Missouri Hannibal is a city along the Mississippi River in Marion County, Missouri, Marion and Ralls County, Missouri, Ralls counties in the U.S. state of Missouri. According to the 2020 United States census, 2020 U.S. Census, the population was 17,108, ...
, though it was contingent on
Federal Highway Administration The Federal Highway Administration (FHWA) is a division of the United States Department of Transportation that specializes in highway transportation. The agency's major activities are grouped into two programs, the Federal-aid Highway Program a ...
(FHWA) approval. The FHWA preferred to designate the route I-72. After discussions regarding extending an Interstate Highway through the state of Missouri, on April 22, 1995, AASHTO approved another renumbering. I-172 was renumbered in its entirety as I-72. The US 36 extension west of Fall Creek was also given the I-72 designation. The
Illinois Route 336 Illinois Route 336 (IL 336, also known as the Thomas A. Oakley Memorial Highway) is a four-lane freeway/ expressway combination that serves western Illinois. It is also used by the Illinois Department of Transportation (IDOT) as a part of ...
(IL 336) expressway was renumbered to I-172 from Fall Creek to Fowler. Prior to September 2000, Mark Twain Avenue (old US 36) was composed of the current Mark Twain Avenue (now Route 79) and the portion of I-72 and US 36 west of exit 157 to the Hannibal city limits. Route 79 terminated at the foot of the old
Mark Twain Memorial Bridge The Mark Twain Memorial Bridge is a bridge over the Mississippi River at Hannibal, Missouri, childhood home of Mark Twain, for whom the bridge is named. The bridge, north of the original bridge, was finished in 2000. The bridge carries traff ...
at the corner of Third Street and Mark Twain Avenue. Signs along the four-lane expressway portion of Mark Twain Avenue marked the route as "Future I-72", while signs along what is now Route 79 had I-72 trailblazers to direct drivers to the temporary terminus at Fall Creek, Illinois. When the new Mark Twain Memorial Bridge was completed in September 2000, I-72 was routed over the new bridge, along with US 36. Route 79 was extended along Mark Twain Avenue to terminate at exit 157.


Chicago–Kansas City Expressway

The concept of I-72 across
Missouri Missouri (''see #Etymology and pronunciation, pronunciation'') is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it border ...
was to create the
Chicago–Kansas City Expressway The Chicago–Kansas City Expressway is a highway that runs between Chicago, Illinois, and Kansas City, Missouri. The road is known as Route 110 in Missouri and Illinois Route 110 (IL 110) in Illinois. IL 110 was created through legislation ...
, a rural four-lane highway across northern Missouri and west central
Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. It borders on Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash River, Wabash and Ohio River, Ohio rivers to its ...
from
Cameron, Missouri Cameron is a city in Clinton, DeKalb and Caldwell counties in the U.S. state of Missouri. The population was 8,513 at the 2020 census. The Clinton and Caldwell counties portion of Cameron are part of the Kansas City Metropolitan Area, while ...
, at
I-35 Interstate 35 (I-35) is a major Interstate Highway in the central United States. As with most primary Interstates that end in a five, it is a major cross-country, north–south route. It stretches from Laredo, Texas, near the Mexico–Uni ...
to
Springfield, Illinois Springfield is the List of capitals in the United States, capital city of the U.S. state of Illinois. Its population was 114,394 at the 2020 United States census, which makes it the state's List of cities in Illinois, seventh-most populous cit ...
, at
I-55 Interstate 55 (I-55) is a major Interstate Highway in the central United States. As with most primary Interstates that end in a five, it is a major cross-country, north–south route, connecting the Gulf of Mexico to the Great Lakes. The ...
. This would provide a series of rural four-lane highways (I-35, US 36, I-72, and I-55) connecting Chicago to the
North American Free Trade Agreement The North American Free Trade Agreement (, TLCAN; , ALÉNA), referred to colloquially in the Anglosphere as NAFTA, ( ) was an agreement signed by Canada, Mexico, and the United States that created a trilateral trade bloc in North America. The ...
(NAFTA) Corridor (
High Priority Corridor The Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA, ) is a United States federal law that posed a major change to transportation planning and policy, as the first U.S. federal legislation on the subject in the post-Interstate H ...
23). This would reduce the amount of through traffic, primarily truck traffic, in the
St. Louis St. Louis ( , sometimes referred to as St. Louis City, Saint Louis or STL) is an independent city in the U.S. state of Missouri. It lies near the confluence of the Mississippi and the Missouri rivers. In 2020, the city proper had a populatio ...
,
Des Moines Des Moines is the List of capitals in the United States, capital and List of cities in Iowa, most populous city in the U.S. state of Iowa. It is the county seat of Polk County, Iowa, Polk County with parts extending into Warren County, Iowa, Wa ...
, and
Quad Cities The Quad Cities is a region of five cities (originally Tri-Cities, later four, see #History, History) in the U.S. states of Iowa and Illinois: Davenport, Iowa, Davenport and Bettendorf, Iowa, Bettendorf (the fifth to be included) in southeaster ...
metropolitan areas by serving as an alternate route for
I-70 Interstate 70 (I-70) is a major east–west Interstate Highway in the United States that runs from I-15 near Cove Fort, Utah, to I-695 and Maryland Route 570 (MD 570) in Woodlawn, just outside Baltimore, Maryland. I-70 appr ...
and
I-80 Interstate 80 (I-80) is an east–west transcontinental freeway that crosses the United States from San Francisco, California, to Teaneck, New Jersey, in the New York metropolitan area. The highway was designated in 1956 as one of the ori ...
. The Missouri portion of this route is designated as part of
High Priority Corridor The Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA, ) is a United States federal law that posed a major change to transportation planning and policy, as the first U.S. federal legislation on the subject in the post-Interstate H ...
61. Based on the marker at Route 79, if/when US 36 is upgraded to
Interstate standards Standards for Interstate Highways in the United States are defined by the American Association of State Highway and Transportation Officials (AASHTO) in the publication ''A Policy on Design Standards: Interstate System''. For a certain highway t ...
across Missouri, the future western terminus of I-72 would be at Cameron at the intersection with I-35. Currently, the west end of I-72 route is west of US 61 and flows concurrent with US 36 into Illinois. In 2004, US 36 was upgraded to a four-lane expressway between US 61 and US 24 at the Rocket Junction (). There are three exits along this expressway: Veterans Road, Shinn Lane (Hannibal Regional Hospital), and US 24 east at the Rocket Junction. Also, an interchange with Route 15 was installed in Shelbina. Due to funding priorities, upgrading US 36 between Macon and
Hannibal Hannibal (; ; 247 – between 183 and 181 BC) was a Punic people, Carthaginian general and statesman who commanded the forces of Ancient Carthage, Carthage in their battle against the Roman Republic during the Second Punic War. Hannibal's fat ...
was a low-priority project and was shelved. The
Missouri Department of Transportation The Missouri Department of Transportation (MoDOT, ) is a state government organization in charge of maintaining public roadways of the U.S. state of Missouri under the guidance of the Missouri Highways and Transportation Commission (MHTC). MoDOT ...
(MoDOT) committed to constructing the four-lane highway as an at-grade expressway only if the five counties served by US 36 east of Macon would contribute half of the $100 million (equivalent to $ in ) cost. Road construction to complete the between Hannibal and Macon began in 2007. In August 2010, the four-lane expressway was completed from Macon to Hannibal, completing Missouri's portion of the Chicago–Kansas City Expressway.


Future

Plans exist to extend I-72 westward from its current terminus in
Hannibal Hannibal (; ; 247 – between 183 and 181 BC) was a Punic people, Carthaginian general and statesman who commanded the forces of Ancient Carthage, Carthage in their battle against the Roman Republic during the Second Punic War. Hannibal's fat ...
to
St. Joseph, Missouri St. Joseph is a city in and county seat of Buchanan County, Missouri, Buchanan County, Missouri, United States. A small portion of the city extends north into Andrew County, Missouri, Andrew County. Located on the Missouri River, it is the princ ...
along the existing
US 36 U.S. Route 36 (US 36) is an east–west United States Numbered Highway that travels approximately from Rocky Mountain National Park, Colorado to Uhrichsville, Ohio. The highway's western terminus is at Deer Ridge Junction, an inte ...
, but the proposal was shelved for years despite most of the route being a part of the
Chicago–Kansas City Expressway The Chicago–Kansas City Expressway is a highway that runs between Chicago, Illinois, and Kansas City, Missouri. The road is known as Route 110 in Missouri and Illinois Route 110 (IL 110) in Illinois. IL 110 was created through legislation ...
. In May 2023, Missouri lawmakers approved a $2.5 million study on the conversion of US 36 into I-72. The extension of I-72 is seen as a way to relieve the pressure off of
I-70 Interstate 70 (I-70) is a major east–west Interstate Highway in the United States that runs from I-15 near Cove Fort, Utah, to I-695 and Maryland Route 570 (MD 570) in Woodlawn, just outside Baltimore, Maryland. I-70 appr ...
as well as reduce truck traffic in
St. Louis St. Louis ( , sometimes referred to as St. Louis City, Saint Louis or STL) is an independent city in the U.S. state of Missouri. It lies near the confluence of the Mississippi and the Missouri rivers. In 2020, the city proper had a populatio ...
. However, in July 2023, the bill was vetoed by Governor
Mike Parson Michael Lynn Parson (born September 17, 1955) is an American politician and former law enforcement officer who served as the 57th List of governors of Missouri, governor of Missouri, from 2018 to 2025. A member of the Republican Party (United S ...
who said that it was not the right time to run the study. The extension to I-29 is listed under High Priority Corridor 61B, although part of it was for the CKC and not I-72.


Exit list


Related routes


Auxiliary routes

I-72 currently has one auxiliary route.


Interstate 172

Interstate 172 serves as a freeway spur for Quincy.


Jacksonville business route

Interstate 72 Business (I-72) is a
business loop A business route (or business loop, business spur, or city route) in the United States is a short special route that branches off a parent numbered highway at its beginning, continues through the central business district of a nearby city or t ...
of I-72 in
Jacksonville Jacksonville ( ) is the most populous city proper in the U.S. state of Florida, located on the Atlantic coast of North Florida, northeastern Florida. It is the county seat of Duval County, Florida, Duval County, with which the City of Jacksonv ...
. It runs from the I-72/ US 36/ US 67 interchange southwest of Jacksonville north along the US 67 bypass of Jacksonville to the former alignment of US 36 (Morton Avenue). On Morton Avenue, I-72 Bus. runs east through downtown Jacksonville until it reaches I-72 at exit 68. This is a distance of .Google maps
estimate.


References


External links


Illinois Highway Ends: Interstate 72
{{DEFAULTSORT:I072
Interstate 72 Interstate 72 (I-72) is an Interstate Highway in the Midwestern United States. Its western terminus is in Hannibal, Missouri, at an intersection with U.S. Route 61 (US 61); its eastern terminus is at Country Fair Drive in Champa ...
72 72 72 Transportation in Marion County, Missouri
Interstate 72 Interstate 72 (I-72) is an Interstate Highway in the Midwestern United States. Its western terminus is in Hannibal, Missouri, at an intersection with U.S. Route 61 (US 61); its eastern terminus is at Country Fair Drive in Champa ...
Interstate 72 Interstate 72 (I-72) is an Interstate Highway in the Midwestern United States. Its western terminus is in Hannibal, Missouri, at an intersection with U.S. Route 61 (US 61); its eastern terminus is at Country Fair Drive in Champa ...
Interstate 72 Interstate 72 (I-72) is an Interstate Highway in the Midwestern United States. Its western terminus is in Hannibal, Missouri, at an intersection with U.S. Route 61 (US 61); its eastern terminus is at Country Fair Drive in Champa ...
Interstate 72 Interstate 72 (I-72) is an Interstate Highway in the Midwestern United States. Its western terminus is in Hannibal, Missouri, at an intersection with U.S. Route 61 (US 61); its eastern terminus is at Country Fair Drive in Champa ...
Interstate 72 Interstate 72 (I-72) is an Interstate Highway in the Midwestern United States. Its western terminus is in Hannibal, Missouri, at an intersection with U.S. Route 61 (US 61); its eastern terminus is at Country Fair Drive in Champa ...
Interstate 72 Interstate 72 (I-72) is an Interstate Highway in the Midwestern United States. Its western terminus is in Hannibal, Missouri, at an intersection with U.S. Route 61 (US 61); its eastern terminus is at Country Fair Drive in Champa ...
Interstate 72 Interstate 72 (I-72) is an Interstate Highway in the Midwestern United States. Its western terminus is in Hannibal, Missouri, at an intersection with U.S. Route 61 (US 61); its eastern terminus is at Country Fair Drive in Champa ...