Minnesota State Highway 40

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Trunk Highway 40

Map
MN 40 highlighted in red
Route information
Defined by MS § 161.%section%
Maintained by MnDOT
Length72.723 mi (117.036 km)
Existed1933–present
Major junctions
West end SD 20 near Marietta, MN, and Revillo, SD
Major intersections US 75 at Madison
US 59 / MN 7 at Milan
East end CSAH 5 in Willmar
Location
CountryUnited States
StateMinnesota
CountiesLac qui Parle, Chippewa, Kandiyohi
Highway system
  • Minnesota Trunk Highway System
MN 39 MN 41

Minnesota State Highway 40 (MN 40) is a 72.723-mile-long (117.036 km) state highway in west-central Minnesota, which travels from South Dakota Highway 20 (SD 20) at the South Dakota state line near Marietta and continues east to its eastern terminus at its intersection with County State-Aid Highway 5 (CSAH 5) in Willmar.

Route description

MN 40 serves as an east–west route between Madison and Willmar in west-central Minnesota.

The route is also known as:

MN 40 crosses Lac qui Parle Lake west of Milan.

Lac qui Parle State Park is located seven miles (11 km) south of the junction of MN 40 and US Highway 59 (US 59) at Milan. The park entrance is located on CSAH 13 near US 59 at Watson.[1]

MN 40 parallels US 12 and US 212 throughout its route in west-central Minnesota.

History

Most of MN 40 was authorized in 1933.

The section of the route between US 75 at Madison and the South Dakota state line was authorized c. 1950.

MN 40 was still gravel in 1940. The route was mostly paved by 1953, except for just west of Willmar. MN 40 was completely paved by 1958.

In 2009, its eastern terminus was moved from US 12 in Willmar to CSAH 5 (30th Street SW).

Major intersections

CountyLocationmikmDestinationsNotes
Lac qui ParleAugusta Township0.0000.000
SD 20 west – Revillo
Western terminus; continuation into South Dakota
Madison12.60020.278
US 75 south
Southern end of US 75 concurrency
12.67920.405
US 75 north
Northern end of US 75 concurrency
Hantho Township24.05738.716 MN 119 – Appleton
Minnesota River/Lac qui Parle28.573–
28.615
45.984–
46.051
Milan Bridge
ChippewaMilan32.41352.164 US 59 / MN 7 – Montevideo, Appleton
Mandt Township41.73767.169
MN 29 south – Montevideo
Western end of MN 29 concurrency
Grace Township47.72576.806
MN 29 north – Benson
Eastern end of MN 29 concurrency
Louriston Township53.69986.420 CSAH 4 – Gluek, De GraffFormer MN 277 south
KandiyohiWillmar72.723117.036 CSAH 5 (30th Street SW)Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References