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Interstate 55 Business
Location
Country	United States
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future

Interstate business routes are roads connecting a central or commercial district of a city or town with an Interstate bypass. These roads typically follow along local streets often along a former U.S. Route or state highway that had been replaced by an Interstate. Interstate business route reassurance markers are signed as either loops or spurs using a green shield shaped sign and numbered like the shield of the parent Interstate highway.

Along Interstate 55 (I-55), there are a total of six business routes, three in both Missouri and Illinois, all which are business loops.

New Madrid business loop

Interstate 55 Business
Location	New Madrid

Interstate 55 Business (I-55 Bus.) is a major arterial surface street that serves downtown New Madrid, Missouri. It runs north from I-55 at exit 44 and the overlap of U.S. Route 61 (US 61)/US 62 through downtown to exit 49 on I-55.

Cape Girardeau business loop

Interstate 55 Business
Location	Cape Girardeau-Fruitland

Interstate 55 Business (I-55 Bus.) begins at US 61/Route 74 in Cape Girardeau at exit 93 and ends at US 61 at exit 105 in Fruitland. However, it also crosses its parent Interstate at exit 99

Crystal City business loop

Interstate 55 Business
Location	Crystal City-Herculaneum

Interstate 55 Business (I-55 Bus.) spans from US 67/US 61 at exit 174 in Crystal City to McNutt Street at exit 178 in Herculaneum.

Springfield business loop

Interstate 55 Business
Location	Springfield

Interstate 55 Business (I-55 Bus.) is to a major arterial surface street that serves downtown Springfield, Illinois. It runs north from the intersection of I-55 and I-72 through downtown to Illinois Route 4 (IL 4, Veterans' Parkway). It then runs northeast to Sherman.

All of I-55 Bus. was part of US 66 at some point.

Major junctions
The entire route is in Sangamon County.

Location	mi	km	Destinations	Notes
Springfield	0.0– 0.7	0.0– 1.1	I-55 / I-72 / US 36 – Jacksonville, Decatur, Chicago, St. Louis	Exit 92A (I-55), Exit 97B (I-72)
	4.9	7.9	IL 97 north (Jefferson Street)
	5.0	8.0	IL 97 south (Madison Street)
	7.0	11.3	IL 29 (Sangamon Avenue)	Southern end of IL 29 concurrency
	8.0	12.9	IL 4 south / IL 29 north (Veterans Parkway) – Abraham Lincoln Capital Airport	Northern end of IL 29 concurrency, northern terminus of IL 4
Sherman	12.1	19.5	IL 124 west (Andrew Road) – Andrew, Athens	Eastern terminus of IL 124
	12.7	20.4	I-55 south – Springfield	Exit 105 (I-55), no access to I-55 northbound from this point
Williams Township	13.9	22.4	I-55 north – Chicago	Only access to I-55 northbound
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access

Lincoln business loop

Interstate 55 Business
Location	Lincoln

Interstate 55 Business (I-55 Bus.) services the downtown of Lincoln, Illinois. It begins southwest of Lincoln and follows the former US 66 to Fifth Street. It then turns east on Fifth Street, southeast on Clinton Street, and northeast on Kickapoo Street at the city's center. The route continues northeast to rejoin the former routing of US 66 northeast of town near the Logan County Airport, at which point it continues along that route to end at I-55 further northeast of Lincoln.

Bloomington–Normal business loop

Interstate 55 Business
Location	Bloomington–Normal

Interstate 55 Business (I-55 Bus.) in Bloomington–Normal is known for its entire length as Veterans Parkway. It is a divided, limited-access highway bypassing the Bloomington–Normal area to the south and east. The route's north–south portion largely passes through a retail core, including Eastland Mall and The Shoppes at College Hills. The highway is also the recommended route from I-39, I-55, and I-74 to Central Illinois Regional Airport via IL 9.

This section is missing mileposts for junctions. Please help by adding them.

Major junctions
The entire route is in McLean County.

Location	mi	km	Destinations	Notes
Bloomington			I-55 south – Springfield I-74 east / US 51 south – Champaign, Decatur I-55 north / I-74 west / US 51 north – Joliet, Peoria, Rockford	Exit 157 on I-55; exit 134 on westbound I-74
			Historic US 66 west (Hamilton Road)	Western end of Historic Route 66 concurrency
			US 51 Bus. / Historic US 66 east (Main Street)	Diamond interchange, eastern end of Historic US 66 concurrency
			US 150 (Morrissey Drive)
			IL 9 (Empire Street) – Pekin, Gibson City	Central Illinois Regional Airport
Normal			Historic US 66 (Shelbourne Drive) – Normal	Southbound exit only
			I-55 – Joliet, Springfield	I-55 exit 167; road continues to the north as Pipeline Road
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access

References

1. Illinois Department of Transportation (February 20, 2009). General Highway Map: Sangamon County, Illinois (PDF) (Map). Illinois Department of Transportation. Retrieved June 9, 2021.
2. "Interstate 55 Business (Springfield)" (Map). Google Maps. Retrieved June 9, 2021.

• Interstate 55
• Business Interstate Highways