Interstate 80 in Indiana

Interstate 80 marker
Interstate 80
Route information
Maintained by INDOT, IFA and ITRCC
Length151.56 mi[1] (243.91 km)
Existed1956–present
NHSEntire route
Major junctions
West end I-80 / I-94 / US 6 at Illinois state line
Major intersections I-65 in Gary
I-90 / I-94 / US 6 in Lake Station
US 421 near Michigan City
US 31 in South Bend
SR 13 near Middlebury
I-69 near Angola
East end

I-80 Toll / I-90 Toll / Ohio Turnpike at Ohio state line
Location
CountryUnited States
StateIndiana
Highway system
  • Indiana State Highway System
SR 75 I-90

In the U.S. state of Indiana, Interstate 80 consists entirely of the following two routes:

I-80 also runs concurrent with another Interstate Highway throughout its entire course in Indiana. The western portion is cosigned with Interstate 94 in the vicinity of Gary; the rest of the route is cosigned with Interstate 90. This is the only instance of an Interstate running concurrent with another on the entire length of the Interstate in any given state.