Interstate 90 in Wisconsin

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Interstate 90 marker

Interstate 90
<mapframe frameless="1" width="290" height="290" align="center">{{Wikipedia:Map data/Wikipedia KML/Interstate 90 in Wisconsin}}</mapframe>
I-90 highlighted in red
Route information
Maintained by WisDOT
Length: 187.13 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
Counties: La Crosse, Monroe, Juneau, Sauk, Columbia, Dane, Rock
Highway system
WIS 89 WIS 91

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.

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

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.

History

In 1959, I-90 was extended north from Rockton Road, the Northwest Tollway's (now Jane Addams Memorial Tollway's) northern terminus, in Illinois to US 14 near Janesville, Wisconsin.[2][3][4][5] In 1961, another section of I-90 was opened. This section ran from US 12/US 18 (later moved slightly southward) near Madison to US 12/US 16 (now US 12/WIS 16) near Wisconsin Dells.[6][7] In 1962, a connection between both opened sections opened to traffic.[7][8] In 1964, I-90 was extended northwestward to US 12/US 16 (now US 12/WIS 16) near Tomah.[9][10] The Dresbach Bridge, spanning the Mississippi River west of La Crosse, was dedicated and opened to traffic on October 12, 1967.[11] By 1969, another separate section of I-90 was opened, traveling from the Minnesota state line to US 16 (now WIS 16) near La Crosse.[12][13] Later, both opened sections were then connected together.[13][14]

Starting in 2015, the 45-mile (72 km), southernmost section of I-39/I-90 (from US 12/US 18 to the Illinois state line) underwent a major reconstruction project. This involved widening the corridor to six lanes (eight lanes in the Janesville area) and reconfiguring all interchanges, including the I-43/WIS 81 interchange. The overall project is scheduled to be completed in 2021.[15]

Exit list

County Location mi[1] km Exit Destinations Notes
Mississippi River 0.00 0.00 I-90 west – Rochester, Albert Lea Continuation into Minnesota
I-90 Mississippi River Bridge
La Crosse Town of Campbell 1.96 3.15 2 CTH-B – French Island Access to La Crosse Regional Airport
La Crosse 2.87 4.62 3 US 53 south / WIS 35 (Alt. I-90) – La Crosse, Onalaska Western end of US 53 concurrency
4.43 7.13 4 US 53 north / WIS 157 – La Crosse, Onalaska Eastern end of US 53 concurrency
5.74 9.24 5 WIS 16 – Onalaska, West Salem
Town of Hamilton 11.78 18.96 12 CTH-C – West Salem
Bangor 15.57 25.06 15 WIS 162 – Bangor, Coon Valley
Monroe Sparta 24.91 40.09 25 WIS 27 – Sparta, Melvina
Town of Angelo 28.18 45.35 28 WIS 16 – Sparta
Town of Tomah 41.42 66.66 41 WIS 131 – Tomah, Wilton
Tomah 43.32 69.72 43 US 12 / WIS 16 – Tomah
Town of Oakdale 45.10 72.58 45 I-94 west – Eau Claire, St. Paul Western end of I-94 concurrency; I-94 exit 147
Oakdale 48.60 78.21 48 CTH-PP – Oakdale
Juneau Camp Douglas 55.03 88.56 55 CTH-C – Camp Douglas, Volk Field
New Lisbon 61.46 98.91 61 WIS 80 – New Lisbon
Town of Lemonweir 69.02 111.08 69 WIS 82 – Mauston, Oxford
Lyndon Station 78.97 127.09 79 CTH-HH – Lyndon Station
Town of Lyndon 85.40 137.44 85 US 12 / WIS 16 – Wisconsin Dells
Sauk Wisconsin Dells 87.22 140.37 87 WIS 13 – Wisconsin Dells
Lake Delton 89.80 144.52 89 WIS 23 – Lake Delton, Reedsburg
Town of Delton 93.13 149.88 92 US 12 – Baraboo, Lake Delton
Columbia Town of Caledonia 105.73 170.16 106 WIS 33 – Portage, Baraboo
108.16–
108.59
174.07–
174.76
108A WIS 78 south – Merrimac
108B I-39 north – Wausau Western end of I-39 concurrency
Town of Dekorra 115.21 185.41 115 CTH-CS – Poynette, Lake Wisconsin
Town of Arlington 119.20 191.83 119 WIS 60 – Lodi, Arlington
Dane Town of Vienna 126.25 203.18 126 CTH-V – Dane, DeForest
Community of Windsor 130.46 209.96 131 WIS 19 – Waunakee, Sun Prairie
Town of Burke 131.98 212.40 132 US 51 – Madison, DeForest
Madison 135.21–
135.24
217.60–
217.65
135A US 151 south – Madison Cloverleaf interchange
135B US 151 north – Sun Prairie
135.45 217.99 135C High Crossing Boulevard Westbound exit and eastbound entrance
137.24 220.87 138A I-94 east – Milwaukee Eastern end of I-94 concurrency; left exit and entrance eastbound; I-94 exit 240
137.59 221.43 138B WIS 30 west – Madison Left exit and entrance westbound; serves Dane County Airport; WIS 30 exit 3 eastbound exit 240A westbound
Town of Blooming Grove 141.43 227.61 142 US 12 / US 18 – Madison, Cambridge Signed as exits 142A (west) and 142B (east); US 12 exit 267
Town of Pleasant Springs 146.80 236.25 147 CTH-N – Stoughton, Cottage Grove
Town of Christiana 155.90 250.90 156 US 51 north to CTH-A – Stoughton, Deerfield Western end of US 51 concurrency
Town of Albion 159.64 256.92 160 US 51 south / WIS 73 / WIS 106 – Edgerton Eastern end of US 51 concurrency
Rock Town of Fulton 162.57 261.63 163 WIS 59 – Edgerton, Milton
Janesville 170.81 274.89 171A 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)
174.71 281.17 175
Alt. I-39 north / WIS 11 east (Racine Street) – Delavan
Western end of WIS 11 concurrency; former Bus. US 14
Town of La Prairie 177.22 285.21 177 WIS 11 west – Janesville, Avalon Eastern end of WIS 11 concurrency
Town of Turtle 182.41 293.56 183 CTH-S (Shopiere Road)
184.70 297.25 185A WIS 81 west – Beloit
184.68 297.21 185B I-43 north – Milwaukee I-43 exit 1
187.13 301.16 I-39 south / I-90 east – Rockford, Chicago Continuation into Illinois
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

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External links

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  • I-90 at Wisconsin Highways


Interstate 90
Previous state:
Minnesota
Wisconsin Next state:
Illinois