Interstate 90 in Minnesota

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This article is about the section of Interstate 90 in Minnesota. For the entire route, see Interstate 90.

Interstate 90 marker

Interstate 90
Interstate 90 highlighted in red
Route information
Maintained by Mn/DOT
Length: 275.70 mi[1] (443.70 km)
Major junctions
West end: I‑90 at the South Dakota state line
  MN 23 near Beaver Creek
US 75 at Luverne
US 59 / MN 60 at Worthington
US 71 at Jackson
US 169 at Blue Earth
I-35 near Albert Lea
US 218 at Austin
US 63 at Stewartville
US 52 near Rochester
US 14 / US 61 near La Crescent
East end: I-90 at the Wisconsin state line
Counties: Rock, Nobles, Jackson, Martin, Faribault, Freeborn, Mower, Olmsted, Winona
Highway system
  • Minnesota Trunk Highways
MN 89 MN 91

In the U.S. state of Minnesota, Interstate 90 traverses the southern side of the state, parallel to the Minnesota-Iowa state line. The route connects the cities of Rochester, Worthington, Albert Lea, and Austin. The city of Winona is also in close proximity to I-90, with about 10 miles away separating the interstate and the city.

Interstate 90 in Minnesota is 276 miles (444 km) in length. The route crosses the far southern parts of the state.

Route description[edit]

Interstate 90 enters the state from South Dakota near Beaver Creek. This part of Minnesota has flat to gently rolling terrain and is the beginnings of corn belt farmland. The flat terrain is often subject to blowing and drifting snow in colder months, and the western portions of the highway are closed multiple times each winter.

Rock County, where I-90 enters Minnesota, is one of the only counties in the state lacking a natural lake. The change from semi-arid to a wetter climate happens slowly moving eastbound on I-90 through southern Minnesota. The route passes through the cities of Luverne, Adrian, Worthington, Jackson, Fairmont, and Blue Earth. I-90 has a junction with I-35 at Albert Lea.

East of the city of Austin, I-90 changes direction slightly and heads towards Rochester, and the route enters a much more hilly landscape. This is the driftless area of southeast Minnesota. Unlike the rest of the state, where the most recent glaciations left terrain that is either flat or rolling under a deposit of glacial till, this area escaped the most recent glaciation. The bedrock to the top of the I-90 road cuts is noticeable at this point. The other notable feature of this area are deep, steep valleys cut by water that poured through this area as the ice cap melted.

The I-90 Bridge between La Crosse, Wisconsin and Dresbach, Minnesota

I-90 drops into the scenic Mississippi River valley just west of Dresbach. The I-90 freeway lanes split apart as you drop down, then rejoin west of the junction with U.S. Highway 61. I-90 then parallels the Mississippi River before turning east and crossing into Wisconsin.

I-90 is atypical in that just across the Minnesota / Wisconsin state line, (immediately west of the community of Dakota) the median is wide enough that farms exist between the road beds.[2]

Legally, the Minnesota section of Interstate 90 is defined as unmarked Legislative Route 391 in the Minnesota Statutes. Interstate 90 is not marked with this legislative number along the actual highway.


Interstate 90 in Minnesota was authorized as part of the original interstate network in 1956. The first section of I-90 in Minnesota constructed was the bypass of Austin in 1961.[3] The wayside rest area near Blue Earth, Minnesota, is where the east-building I-90 and west-building I-90 teams linked up in 1978, thus completing construction in Minnesota and joining the 3,099.07 miles of the interstate.[4] Plaques dedicating the pavement completion and describing the significance of this segment are on display at the rest area.

I-90 in Minnesota closely follows the route of old U.S. Highway 16 over most of its route except from just east of Austin, where I-90 turns toward Rochester and is constructed on a new alignment not previously covered by a highway. The section of I-90 east of Rochester was constructed just south of U.S. Highway 14 and south of the city of Winona.

I-90 served as a replacement for old U.S. 16 between the South Dakota state line and I-90's interchange with present day State Highway 16 at Dexter.

Three lanes each way have been constructed on I-90 between its two junctions with U.S. Highway 61 at the communities of Dresbach and Dakota to facilitate commuter traffic between La Crosse and Winona.


A replacement of the I-90 Mississippi River Bridge near La Crescent is under construction. The new bridge is expected to be completed by 2015.

Exit list[edit]

County Location Mile km Exit Destinations Notes
Rock   0.000 0.000 I‑90 west Continuation into South Dakota
  1 MN 23 / County 17 – Jasper, Pipestone Also leads to Manley one mile (1.6 km) to the south
Beaver Creek 3 County 4 – Beaver Creek Eastbound exit and westbound entrance
5 County 6 – Beaver Creek, Hills
Luverne 12 US 75 – Luverne, Rock Rapids Also access to Pipestone
Magnolia 18 County 3 – Magnolia, Kanaranzi
Nobles Adrian 26 MN 91 – Adrian, Lake Wilson
Rushmore 33 County 13 – Rushmore, Wilmont
Worthington 42 I-90 Bus. east / County 25 – Worthington, Wilmont
43 US 59 – Worthington, Slayton
45 I-90 Bus. west / MN 60 – Worthington, Windom Also access to Mankato, Sioux City, Twin Cities
  47 County 53 Eastbound exit and westbound entrance
NoblesJackson county line   50 MN 264 / County 1 – Brewster, Round Lake
Jackson   57 County 9 – Heron Lake, Okabena
  64 MN 86 – Lakefield, Spirit Lake
Jackson 73 US 71 – Jackson, Windom, Spirit Lake
Alpha 80 County 29 – Alpha
Martin Sherburn 87 MN 4 – Sherburn, St. James, Trimont, Estherville
Welcome 93 MN 263 / County 27 – Welcome, Ceylon
Fairmont 99 I-90 Bus. east / County 39 – Fairmont
102 I-90 Bus. west / MN 15 – Fairmont, Madelia, Truman, Armstrong Also access to Mankato, Twin Cities
Granada 107 County 53 – Granada, East Chain road from exit into Granada was formerly MN 262
Faribault Guckeen 113 County 1 – Guckeen, Huntley
Blue Earth 119 US 169 – Blue Earth, Mankato, Winnebago, Elmore
  128 MN 254 / County 17 – Easton, Frost
  134 MN 253 / County 21 – Minnesota Lake, Bricelyn
  138 MN 22 – Wells, Kiester
Freeborn Alden 146 MN 109 / County 6 – Alden, Mankato
Albert Lea 154 MN 13 – Albert Lea, Waseca
157 County 22 – Albert Lea
159 I-35 – Albert Lea, Des Moines, Minneapolis, St. Paul Signed as exits 159A (south) and 159B (north)
Hayward 163 County 26 – Hayward
Oakland 166 County 46 (Oakland Road) – Petran, Oakland
Mower Austin 175 I-90 Bus. east / MN 105 / County 46 / Oakland Avenue – Austin
177 US 218 north / 14th Street Northwest – Austin, Owatonna West end of US 218 overlap
178A 4th Street Northwest – Austin
178B 6th Street Northeast – Austin
179 11th Drive Northeast – Austin
180A I-90 Bus. west / Oakland Place – Austin Westbound exit and eastbound entrance
180B US 218 south / 21st Street Northeast – Austin East end of US 218 overlap
181 28th Street Northeast – Austin
  183 MN 56 – Brownsdale, Rose Creek
  187 County 20
  189 County 13 – Elkton
Dexter 193 MN 16 – Dexter, Grand Meadow, Spring Valley, Preston
Olmsted   205 County 6
Stewartville 209 US 63 / MN 30 – Stewartville, Rochester Signed as exits 209A (south/east) and 209B (north/west)
Rochester 218 US 52 – Chatfield, Rochester Also access to Twin Cities
Eyota 224 MN 42 / County 7 – Eyota
Dover 229 County 10 – Dover
Winona St. Charles 233 MN 74 – St. Charles, Chatfield
  242 County 29 – Lewiston
  249 MN 43 south – Rushford West end of MN 43 overlap
Winona 252 MN 43 north – Winona East end of MN 43 overlap
  257 MN 76 – Houston
Nodine 267 County 12 – Nodine
  270 US 14 west (westbound) / US 61 north (westbound) – Winona Westbound access to US 14 west/US 61 north; west end of US 14 / US 61 overlap; no eastbound exit (use exit 271)
Dakota 271 To US 14 west (eastbound) / US 61 north (eastbound) – Dakota Eastbound access to US 14 west/US 61 north; no westbound entrance (that is at exit 270)
Dresbach 273A Dresbach Eastbound exit and westbound entrance (westbound exit and eastbound entrance are at exit 273B)
273B Dresbach No westbound entrance
La Crescent 276 US 14 east / US 61 south – La Crescent, La Crosse East end of US 14 / US 61 overlap
Mississippi River I-90 east Continuation into Wisconsin
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


Route map: Google / Bing

*Steve Riner Details of Routes 76 to 100. Unofficial Minnesota Highways Page. Accessed January 12, 2009.

Interstate 90
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South Dakota
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