M-63 (Michigan highway)

M-63
M-63 highlighted in red
Route information
Maintained by MDOT
Length	16.141 mi[1] (25.976 km)
Existed	1986[2][3]–present
Tourist routes	Lake Michigan Circle Tour West Michigan Pike Pure Michigan Byway
Major junctions
South end	M-139 at Scottdale
Major intersections	I-94 / BL I-94 at St. Joseph
North end	I-196 / US 31 near Hagar Shores
Location
Country	United States
State	Michigan
Counties	Berrien
Highway system
Michigan State Trunkline Highway System Interstate US State Byways
← M-62 → M-64

M-63 is a state trunkline highway in the US state of Michigan that runs from M-139 at Scottdale through the cities of Benton Harbor and St. Joseph to Interstate 196/US Highway 31 (I-196/US 31) at exit 7 just outside Hagar Shores. The trunkline runs through residential areas south of St. Joseph and through the central business districts of the twin cities. Further north, M-63 runs along the Lake Michigan shoreline.

All of M-63's routing was part of US 33 before that highway's truncation south of Niles in 1986. A previous designation of M-63 was used farther north in Lake and Osceola counties from 1919 until 1961. Since the current designation was created, the Michigan Department of Transportation (MDOT) has worked on reconfiguring parts of the roadway in the early part of the 21st century. The bridge M-63 uses to cross the St. Joseph River, the Blossomland Bridge, has been identified as an historic structure using a rare design. The bridge itself dates back to the late 1940s.