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Tri-State Tollway | ||||
I-294 highlighted in red | ||||
Route information | ||||
Auxiliary route of I-94 | ||||
Maintained by ISTHA | ||||
Length | 53.45 mi[1] (86.02 km) | |||
Existed | 1958 [2]–present | |||
History | Completed December 23, 1958[3] | |||
Major junctions | ||||
South end | ![]() ![]() ![]() | |||
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North end | ![]() ![]() | |||
Location | ||||
Country | United States | |||
State | Illinois | |||
Counties | Cook | |||
Highway system | ||||
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Interstate 294 (I-294) is a tolled auxiliary Interstate Highway in the northeastern part of the U.S. state of Illinois. Forming the southern portion of the Tri-State Tollway in Illinois, I-294 runs from South Holland at I-80/I-94 and Illinois Route 394 (IL 394) to Northbrook at I-94. I-294 is 53.42 miles (85.97 km) long; 5.32 miles (8.56 km) are shared with I-80.[1] It serves as a bypass around the city of Chicago. I-294 is also the longest auxiliary route of I-94, at 10 miles (16 km) longer than I-494 in Minneapolis–Saint Paul. In addition, the tollway is the longest auxiliary Interstate Highway in Illinois, and it intersects the most primary Interstate Highways at six.