M-189 (Michigan highway)

M-189 is a north–south state trunkline highway in the Upper Peninsula of the US state of Michigan. It serves as the continuation of Highway 139 (WIS 139) from Wisconsin into Michigan, connecting to US Highway 2 (US 2) in Iron River. M-189 has been largely unchanged since being designated in the 1930s, although a new bridge over the Brule River at the state line was built in 1988.

M-189
M-189 highlighted in red
Route information
Maintained by MDOT
Length7.786 mi[1] (12.530 km)
Existedc. 1932[2][3]–present
Major junctions
South end WIS 139 near Iron River
North end US 2 in Iron River
Location
CountiesIron
Highway system
← M-188→ M-199

Route description
Brule River crossing as WIS 139 transitions to M-189

M-189 starts at the Wisconsin state line in the middle of a bridge crossing the Brule River that connects to WIS 139. The highway runs to the northeast away from the river through forests. The trunkline turns north and curving to the east to run past Laurel Lake. The highway forks at the junction with Caspian Cutoff Road (County Road 651); M-189 takes the northwesterly fork and runs around the west side of Caspian. The roadway passes the Iron River County Club as the highway begins to parallel the Iron River. M-189 follows Selden Road north through the southside of the city of Iron River, continuing as 4th Street into downtown. The trunkline ends at a junction with US 2 (Adams Street) in the middle of town.[4][5]

No part of M-189 is listed on the National Highway System.[6] In 2009, the Michigan Department of Transportation conducted a survey to determine the traffic volume along the highway, reported using a metric called average annual daily traffic (AADT). The department determined that 892 vehicles a day used the highway near the state line while 5,308 vehicles used the central section through Caspian. The northernmost segment near US 2 had an AADT of 4,079  vehicles.[7]

History

The Michigan State Highway Department designated M-189 as a state trunkline highway in late 1932 or early 1933.[2][3] During the latter half of 1936, the department paved the highway in its entirety.[8][9] The route has remained the same since.[4] The current bridge across the Brule River was built in 1988.[10]

Major intersections

The entire highway is in Iron County.

Locationmi[1]kmDestinationsNotes
Stambaugh Township0.0000.000 WIS 139 south – Long LakeWisconsin state line
Iron River7.78612.530 US 2 – Ironwood, Crystal Falls
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also
  •  Michigan Highways portal

References
  1. Michigan Department of Transportation & Michigan Center for Shared Solutions and Technology Partnerships (2009). MDOT Physical Reference Finder Application (Map). Michigan Department of Transportation. Retrieved May 8, 2011.
  2. Michigan State Highway Department & Rand McNally (October 1, 1932). Official Michigan Highway Map (Map). [c. 1:840,000]. Lansing: Michigan State Highway Department. § D3. OCLC 12701053.
  3. Michigan State Highway Department & Rand McNally (May 1, 1933). Official Michigan Highway Map (Map). [c. 1:840,000]. Lansing: Michigan State Highway Department. § D3. OCLC 12701053. Archived from the original on May 10, 2017. Retrieved December 18, 2016 – via Archives of Michigan.
  4. Michigan Department of Transportation (2010). Uniquely Michigan: Official Department of Transportation Map (Map). c. 1:975,000. Lansing: Michigan Department of Transportation. § D3. OCLC 42778335, 639960603.
  5. Google (May 8, 2011). "Overview Map of M-189" (Map). Google Maps. Google. Retrieved May 8, 2011.
  6. Michigan Department of Transportation (April 23, 2006). National Highway System, Michigan (PDF) (Map). Scale not given. Lansing: Michigan Department of Transportation. Archived from the original (PDF) on September 21, 2012. Retrieved October 7, 2008.
  7. Bureau of Transportation Planning (2008). "Traffic Monitoring Information System". Michigan Department of Transportation. Retrieved May 8, 2011.
  8. Michigan State Highway Department & Rand McNally (June 1, 1936). Official Michigan Highway Map (Map). [c. 1:850,000]. Lansing: Michigan State Highway Department. § D3. OCLC 12701143.
  9. Michigan State Highway Department & Rand McNally (December 15, 1936). Official Michigan Highway Map (Map) (Winter ed.). [c. 1:850,000]. Lansing: Michigan State Highway Department. § D3. OCLC 12701143, 317396365. Retrieved October 17, 2019 – via Michigan History Center.
  10. Federal Highway Administration (2012). "NBI Structure Number: 36136031000B010". National Bridge Inventory. Federal Highway Administration.

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