East
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CSAH 46 (Oakland Road) meets Interstate 90 east at a folded diamond interchange (Exit 166) in one mile. The county road represents former U.S. 16.
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A loop ramp joins I-90 east with CSAH 46 to the Canadian Pacific railroad siding of Hollandale Junction.
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U.S. 63 connects Interstate 90 with the city of Rochester in 41 miles.
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The final business loop along Interstate 90 leaves in 1.25 miles for downtown Austin.
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U.S. 218 (14th Street NW) south joins the freeway 2.25 miles ahead.
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MN 105 begins a 13.65 mile course east and south to the Iowa state line while I-90 Business extends through central Austin, rejoining I-90 in 4.2 miles.
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The ensuing stretch through northern Austin is the oldest section of I-90 in Minnesota, dating back to the late 1950s. The section known as the Austin Belt Line was completed by 1961.1
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U.S. 218 joins I-90 for a 2.4 mile overlap at the upcoming diamond interchange (Exit 177) with 14th Street NW.
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U.S. 218 originates at I-35 in the southwest corner of Owatonna, angling southeast to Austin and I-90.
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Bridge replacements underway in Fall 2021 updated the aging twin structures over I-90 at Exit 177.2
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East 
South
4th Avenue NW (CSAH 45) represents the former alignment of U.S. 218 into Austin.
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The freeway narrows as it advances southeast from 6th Avenue NE (Exit 178B).
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0.2 miles separate 11th Drive NE / Exit 179 from this railroad bridge built in 19573 across I-90.
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U.S. 218 travels 12.2 miles south from I-90 to the city of Lyle and the Iowa border. The highway stair steps southeast through the Hawkeye state to Waterloo, Cedar Rapids, Iowa City and Keokuk.
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East
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I-90 angles northeast from Exit 189 / CSAH 13 to Dexter and Rochester.
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MN 16 branches east along the old routing of U.S. 16 to Spring Valley and Preston.
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Sources:
- State of Minnesota Department of Highways Road Life Studies Construction Project Log Record (pdf), Minnesota Department of Transportation (MNDOT).
- I-90 Bridge Replacements - Austin, MNDOT website (www.dot.state.mn.us).
- IM RAIL over I 90, BridgeReports.com, retrieved August 8, 2020.
Photo Credits:
06/15/15 by AARoads
Page Updated 08-08-2020.