M-45 (Michigan highway)

This article is about the Michigan state trunkline highway numbered M-45. For the U.S. Highway, see U.S. Route 45 in Michigan. For other uses, see M45 (disambiguation).

M-45 marker
M-45
Lake Michigan Drive
Map
M-45 highlighted in red
Route information
Maintained by MDOT
Length24.434 mi[1] (39.323 km)
Existed1964[2][3]–present
Major junctions
West end US 31 in Agnew
Major intersections M-231 near Robinson
East end I-196 in Grand Rapids
Location
CountryUnited States
StateMichigan
CountiesOttawa, Kent
Highway system
← US 45→ M-46

M-45 is a state trunkline highway in the US state of Michigan that is also called Lake Michigan Drive. The highway runs from Agnew near Lake Michigan to the west side of Grand Rapids in the western Lower Peninsula. Lake Michigan Drive continues in each direction from M-45's termini, extending west of US Highway 31 (US 31) and east of Interstate 196 (I-196). In between, the road runs through rural and suburban areas of Ottawa and Kent counties, including the main campus of Grand Valley State University in Allendale. Lake Michigan Drive was originally part of M-50 until the mid-1960s. Previously in the 1920s and 1930s, the M-45 number was designated along a highway in the Upper Peninsula (UP).

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