Interstate 90 in Wisconsin

Interstate 90 (I-90) runs east–west through the western, central and southern portions of the U.S. state of Wisconsin. About 187 miles (301 km) of I-90 lie in the state.

Interstate 90
I-90 highlighted in red
Route information
Maintained by WisDOT
Length187.13 mi[1] (301.16 km)
Major junctions
West end I-90 at Minnesota state line
  US 53 in La Crosse
I-94 in Tomah
I-39 in Portage
US 51 in Madison
US 151 in Madison
I-94 in Madison
US 12 / US 18 in Madison
US 14 in Janesville
I-43 in Beloit
East end I-39 / I-90 at Illinois state line
Location
CountiesLa Crosse, Monroe, Juneau, Sauk, Columbia, Dane, Rock
Highway system
WIS 89 WIS 91

All 187 miles of I-90 in Wisconsin have a speed limit of 70 mph.

Route description

Interstate 90 entering Wisconsin near La Crosse

The highway enters from Minnesota over the Mississippi River just northwest of La Crosse. The freeway passes north of La Crosse and south of Onalaska as it heads towards Tomah. Once there, it joins I-94. The two Interstates run concurrently for the next 91.76 miles (147.67 km) to Madison. The highway collects Interstate 39, 63 miles (101 km) southeast of Tomah (near Portage). This concurrency of about 30 miles (48 km) is one of only two three-route concurrency of the Interstate Highway System existence, the other being in Milwaukee. I-39 continues along I-90 for the remaining 78 miles (126 km) in Wisconsin.

I-94 breaks away eastward toward Milwaukee at what is commonly known as the Badger Interchange, where the three Interstates meet with WIS 30. The remaining routes continue south to Janesville and Beloit before exiting the state.

Exit list

CountyLocationmi[1]kmExitDestinationsNotes
Mississippi River0.000.00 I-90 west Rochester, Albert LeaContinuation into Minnesota
I-90 Mississippi River Bridge
La CrosseTown of Campbell1.963.152 CTH-B French Island
La Crosse2.874.623 US 53 south / WIS 35 (Alt. I-90) La Crosse, OnalaskaWestern end of US 53 concurrency
4.437.134 US 53 north / WIS 157 La Crosse, OnalaskaEastern end of US 53 concurrency
5.749.245 WIS 16 Onalaska, West Salem
Town of Hamilton11.7818.9612 CTH-C West Salem
Bangor15.5725.0615 WIS 162 Bangor, Coon Valley
MonroeSparta24.9140.0925 WIS 27 Sparta, Melvina
Town of Angelo28.1845.3528 WIS 16 Sparta
Town of Tomah41.4266.6641 WIS 131 Tomah, Wilton
Tomah43.3269.7243 US 12 / WIS 16 Tomah
Town of Oakdale45.1072.5845 I-94 west Eau Claire, St. PaulWestern end of I-94 concurrency; I-94 exit 147
Oakdale48.6078.2148 CTH-PP Oakdale
JuneauCamp Douglas55.0388.5655 CTH-C Camp Douglas, Volk Field
New Lisbon61.4698.9161 WIS 80 New Lisbon
Town of Lemonweir69.02111.0869 WIS 82 Mauston, Oxford
Lyndon Station78.97127.0979 CTH-HH Lyndon Station
Town of Lyndon85.40137.4485 US 12 / WIS 16 Wisconsin Dells
SaukWisconsin Dells87.22140.3787 WIS 13 Wisconsin Dells
Lake Delton89.80144.5289 WIS 23 Lake Delton, Reedsburg
Town of Delton93.13149.8892 US 12 Baraboo, Lake Delton
ColumbiaTown of Caledonia105.73170.16106 WIS 33 Portage, Baraboo
108.16–
108.59
174.07–
174.76
108A WIS 78 south Merrimac
108B I-39 north WausauWestern end of I-39 concurrency
Town of Dekorra115.21185.41115 CTH-CS Poynette, Lake Wisconsin
Town of Arlington119.20191.83119 WIS 60 Lodi, Arlington
DaneTown of Vienna126.25203.18126 CTH-V Dane, DeForest
Community of Windsor130.46209.96131 WIS 19 Waunakee, Sun Prairie
Town of Burke131.98212.40132 US 51 Madison, DeForest
Madison135.21–
135.24
217.60–
217.65
135A US 151 south MadisonCloverleaf interchange
135B US 151 north Sun Prairie
135.45217.99135CHigh Crossing BoulevardWestbound exit and eastbound entrance
137.24220.87138A I-94 east MilwaukeeEastern end of I-94 concurrency; left exit and entrance eastbound; I-94 exit 240
137.59221.43138B WIS 30 west MadisonLeft exit and entrance westbound; serves Dane County Airport; WIS 30 exit 3 eastbound exit 240A westbound
Town of Blooming Grove141.43227.61142 US 12 / US 18 Madison, CambridgeSigned as exits 142A (west) and 142B (east); US 12 exit 267
Town of Pleasant Springs146.80236.25147 CTH-N Stoughton, Cottage Grove
Town of Christiana155.90250.90156 US 51 north to CTH-A Stoughton, DeerfieldWestern end of US 51 concurrency
Town of Albion159.64256.92160 US 51 south / WIS 73 / WIS 106 EdgertonEastern end of US 51 concurrency
RockTown of Fulton162.57261.63163 WIS 59 Edgerton, Milton
Janesville170.81274.89171A WIS 26 Milton
171.52–
171.57
276.03–
276.12
171B
Alt. I-39 south / US 14 Janesville
Formerly split into exits 171B (west) and 171C (east)
174.71281.17175
Alt. I-39 north / WIS 11 east (Racine Street) Delavan
Western end of WIS 11 concurrency; former Bus. US 14
Town of La Prairie177.22285.21177 WIS 11 west Janesville, AvalonEastern end of WIS 11 concurrency
Town of Turtle182.41293.56183 CTH-S (Shopiere Road)
184.70297.25185A WIS 81 west Beloit
184.68297.21185B I-43 north MilwaukeeI-43 exit 1
187.13301.16 I-39 south / I-90 east Rockford, ChicagoContinuation into Illinois
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

  1. Southwest Region Staff (December 31, 2008). State Trunk Highway Log for Southwest Region (XLS). Madison, WI: Wisconsin Department of Transportation. 090E.

KML is from Wikidata
  • I-90 at Wisconsin Highways


Interstate 90
Previous state:
Minnesota
Wisconsin Next state:
Illinois
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