Illinois/Major roads Discussion View history

Freeways

These are interstates, highways, freeways, toll roads, and expressways that are multi-lane, divided roads with no stops (no traffic lights, exit and entrance from/to the road is through ramps).

Road Dir Northern/
Western End
Southern/
Eastern End
Toll Road? Notes
I-24 W/E I-57
South of Marion
KY Border
Ohio River
N
I-39 N/S WI Border I-55
Normal
N* Tollway while joined with I-90 from Rockford to WI border.
I-55 N/S US 41 (Lake Shore Dr / Chicago) MO Border
East St. Louis
N Known as Stevenson Expressway within Cook County.
I-57 N/S I-94
Chicago
MO Border
Mississippi River
N
I-64 W/E MO Border
East St. Louis
IN Border
Wabash River
N
I-70 W/E MO Border
Mississippi River
IN Border N
I-72 W/E MO Border
Mississippi River
I-57
Champaign
N
I-74 W/E IA Border
Mississippi River
IN Border N
I-80 W/E IA Border IN Border N* Tollway portion between I-94 at Thornton and I-294 near Hazel Crest. Tollway portion known as (part of) the Tri-State Tollway.
I-88 W/E IA Border I-290/I-294 Y* Tollway from mile marker 44 (US-30) to eastern terminus. West of US-30 is a freeway. Toll road portion is known as the Ronald Regan Memorial Tollway.
I-90 W/E WI Border IN Border Y* Tollway from US-51 (WI Border) to east of O'Hare airport (near IL-171 / Cumberland Ave) and from south of Chicago to the IN border. Toll portion from WI border to Chicago area is known as the Jane Addams Memorial Tollway. Freeway portion is known as the Kennedy Expressway north of downtown Chicago (I-290 junction) and Dan Ryan Expressway south of downtown Chicago (I-290 junction). Southeast tollway portion is known as the Chicago Skyway to the IN border.
I-94 W/E* WI Border IN Border N* Direction of travel in IL is mostly N/S but designation is W/E. Tollway from Deerfield (I-294 junction) to US-41. Tollway portion known as (part of) the Tri-State Tollway. Freeway portion known as the Edens Expressway until it joins I-90.
I-155 N/S I-74
Morton
I-55
Northwest of Lincoln
N
I-172 N/S US-24
North of Quincy
I-72
South of Quincy
N Formerly called the Central Illinois Expressway
I-180 N/S I-80
Princeton
IL-26
Hennepin
N
I-190 W/E O'Hare International Airport
Chicago
I-90
Chicago
N
I-255 N/S MO Border
Mississippi River
I-270/IL-255
East of Alton
N
I-270 W/E MO Border
Mississippi River
I-70
Northwest of Troy
N
I-280 W/E IA Border
Mississippi River
I-74/I-80
Colona
N
I-290 W/E I-90
East of Schaumburg
I-90/94
Downtown Chicago
N Known as the Eisenhower Expressway.
I-294 N/S I-94
near Lake-Cook County Line
I-80/IL-394
West of Lansing
Y Known as (part of) the Tri-State Tollway.
I-355 N/S I-290
Itasca
I-80
New Lenox
Y Known as the Veterans Memorial Tollway.
I-474 W/E I-74/IL-6
Peoria
I-74
East Peoria
N

Major Highway

A big highway, usually 3+ lanes, with minimal stops – mostly exits and interchanges, but possibly with some intersections and junctions. In Illinois these are designated as US-XXX or State Rte #.

Road Dir Northern/
Western End
Southern/
Eastern End
Notes
IL 83 N/S north of 31st St.
(Oak Brook)
Archer Ave
(Lemont)
Continues as Minor Hwy north to xxx

Minor Highways

Usually a narrower highway, 2 lanes or less, that has stops or traffic lights at almost every intersection, but is still a highway (minor US or state highway). These roads are generally important thoroughfare that goes through several cities or towns. In Illinois these are designated as US Rte # or State Rte #.

Road Dir Northern/
Western End
Southern/
Eastern End
Notes
IL 83 N/S Devon Ave
(Elk Grove Village)
31st St
(Oak Brook)

Primary Street

These are major roads or boulevards in urban and suburban areas and have large amounts of use (such as xx). In less urban environments they are main thoroughfares in towns that are not US or state highways.

Road Dir Northern/
Western End
Southern/
Eastern End
Notes
Boughton Rd W/E Naperville-Plainfield Rd
(Bolingbrook)
Woodward Ave
(Woodridge)
Continues east as 87th St

To Be Categorized

These roads still have to be put in their proper places above.

Road Dir Northern/
Western End
Southern/
Eastern End
Notes
US 6 W/E IA-IN borders (Moline - Lansing) Grand Army of the Republic Highway