Business routes of Interstate 55


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 These roads typically follow along local streets often along a former U.S. Route or state highway that had been replaced by an Interstate.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, there are a total of six business routes, three in both Missouri and Illinois, all which are business loops.

Missouri

New Madrid business loop

Interstate 55 Business is a business loop in New Madrid County, Missouri, that is a major arterial surface street that serves downtown New Madrid, Missouri. It runs north from I-55 at exit 44 in New Madrid through downtown New Madrid to I-55 at exit 49. The entire route runs concurrently with U.S. Route 61/U.S. Route 61.
Major intersections

Cape Girardeau business loop

Interstate 55 Business begins at US 61/Route 74 in Cape Girardeau at exit 93 and ends at US 61 at exit 105 in Fruitland. It also crosses its parent Interstate at exit 99

Crystal City business loop

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

Illinois

Springfield business loop

Interstate 55 Business 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. It then runs northeast to Sherman.
All of I-55 Bus. was part of US 66 at some point.
Major intersections

Lincoln business loop

Interstate 55 Business serves the downtown of Lincoln, Illinois.
Major intersections

Bloomington–Normal business loop

Interstate 55 Business 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.
Major intersections