M-139 (Michigan highway)

M-139 marker
M-139
Map
M-139 highlighted in red
Route information
Maintained by MDOT
Length26.487 mi[1] (42.627 km)
ExistedSeptember 22, 1929[2][3]–present
Major junctions
South end US 12 near Niles
Major intersections I-94 near Benton Harbor
North end BL I-94 in Benton Harbor
Location
CountryUnited States
StateMichigan
CountiesBerrien
Highway system
← M-138→ M-140

M-139 is a state trunkline highway entirely within Berrien County in the US state of Michigan. The highway starts at US Highway 12 (US 12) southwest of Niles and runs through rural areas of the county to terminate at an intersection with Business Loop Interstate 94 (BL I-94) in Benton Harbor. The highway runs parallel to the St. Joseph River, crossing the river several times as it follows a set of roads previously used for US 31 in the area. The highway was first designated in the 1930s as a bypass of the Benton Harbor and St. Joseph area. Its termini have been moved over the years since, extending and contracting the length of the highway between Niles and Benton Harbor. M-139 now serves to provide access through the area from a set of bypasses consisting of I-94 and US 31.

  1. ^ Cite error: The named reference PRFA was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference MSHD31-05 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference MSHD31-10 was invoked but never defined (see the help page).