Minnesota State Highway 43

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Trunk Highway 43 marker

Trunk Highway 43
MN 43 highlighted in red
Route information
Maintained by Mn/DOT
Length: 44.952 mi (72.343 km)
Existed: 1920 – present
Major junctions
South end: MN 44 at Mabel
  MN 16 at Rushford
MN 30 at Rushford
I-90 at Wilson Township
US 14 / US 61 at Winona
North end: WIS 54 at the Mississippi River,
at Winona, MN
Counties: Fillmore, Winona
Highway system
  • Minnesota Trunk Highways
MN 42 MN 44

Minnesota State Highway 43 (MN 43) is a highway in southeast Minnesota, which runs from its intersection with State Highway 44 in Mabel and continues north to its northern terminus at the Wisconsin state line at Winona, where it becomes Wisconsin Highway 54 upon crossing the Mississippi River.

Highway 43 is 45 miles (72 km) in length.

Route description[edit]

State Highway 43 serves as a north–south route between Mabel, Rushford, and Winona in southeast Minnesota.

The route crosses the Root River in Fillmore County.

Highway 43 passes through the Richard J. Dorer State Forest.

The northern terminus of Highway 43 is at the Mississippi River at Winona, where the route becomes Wisconsin Highway 54 upon crossing the Main Channel and North Channel bridges over the river to Wisconsin.

The northern terminus of State Highway 43 looking southbound towards the city of Winona


State Highway 43 was authorized in 1920 between Rushford and Winona.[1] The remainder of the route between Rushford and Mabel was authorized in 1933.[2]

Highway 43 was paved from Wilson to Winona by 1929. The only gravel section remaining by 1940 was south of Rushford. The route was completely paved by 1953.[2]

A major project in the 1980s to rebuild Highway 43 from Interstate 90 to Winona as an expressway ran out of money. Only one carriageway was actually paved.[2] There is still visible road bed and bridges east of the roadway in this section.[3]

In response to the I-35W Bridge collapse in Minneapolis on August 1, 2007, all Minnesota bridges were ordered to be inspected. During an inspection, "gusset plate corrosion issues" were discovered in the Main Channel Bridge (Highway 43 / Highway 54), which crosses the Mississippi River between Winona, MN and nearby Fountain City, WI. The Main Channel Bridge (Bridge #5900) was closed to traffic on June 3, 2008. Mn/DOT made a statement this was due to gusset plate corrosion issues similar to those that caused the I-35W Bridge to collapse.[4] The Main Channel Bridge reopened to car traffic on June 14, 2008. Commercial vehicles were still directed to find alternate routes across the river. The bridge was scheduled for replacement in 2017, which has been moved up to 2014.

Major intersections[edit]

County Location mi km Destinations Notes
Fillmore Newburg Township 0.000 0.000 MN 44
Rushford Village 21.677 34.886 MN 16 South end of MN 16 overlap
Rushford 22.211 35.745 MN 16 North end of MN 16 overlap
22.401 36.051 MN 30
Winona Warren Township 32.381 52.112 I-90 West end of I-90 overlap
Wilson Township 35.186 56.626 I-90 East end of I-90 overlap
Winona 42.100 67.753 US 61 / US 14
Mississippi River 45.334 72.958 Main Channel Bridge and North Channel Bridge; Minnesota–Wisconsin state line
Buffalo Town of Buffalo WIS 54 Continuation into Wisconsin
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


Route map: Google

KML is from Wikidata
  1. ^ Minnesota State Legislature (2010). "§ 161.114, Constitutional Trunk Highways". Minnesota Statutes. Minnesota Office of the Revisor of Statutes. Retrieved October 20, 2010. 
  2. ^ a b c Riner, Steve. "Details of routes 26–50". The Unofficial Minnesota Highways Page. Self-published. Retrieved October 20, 2010. [self-published source]
  3. ^ Google (October 20, 2010). "Minnesota State Highway 43" (Map). Google Maps. Google. Retrieved October 20, 2010. 
  4. ^ Minnesota Highway 43 / Wisconsin Highway 54 - Mississippi River Crossing at Winona - project status Mn/DOT. Accessed June 5, 2008.